Linux kernel & device driver programming

Cross-Referenced Linux and Device Driver Code

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Version: [ 2.6.11.8 ] [ 2.6.25 ] [ 2.6.25.8 ] [ 2.6.31.13 ] Architecture: [ i386 ]

Diff markup

Differences between /linux/drivers/pnp/card.c (Version 2.6.31.13) and /linux/drivers/pnp/card.c (Version 2.6.25)


  1 /*                                                  1 /*
  2  * card.c - contains functions for managing gr      2  * card.c - contains functions for managing groups of PnP devices
  3  *                                                  3  *
  4  * Copyright 2002 Adam Belay <ambx1@neo.rr.com      4  * Copyright 2002 Adam Belay <ambx1@neo.rr.com>
  5  */                                                 5  */
  6                                                     6 
  7 #include <linux/module.h>                           7 #include <linux/module.h>
  8 #include <linux/ctype.h>                       << 
  9 #include <linux/slab.h>                             8 #include <linux/slab.h>
 10 #include <linux/pnp.h>                              9 #include <linux/pnp.h>
 11 #include <linux/dma-mapping.h>                 << 
 12 #include "base.h"                                  10 #include "base.h"
 13                                                    11 
 14 LIST_HEAD(pnp_cards);                              12 LIST_HEAD(pnp_cards);
 15 static LIST_HEAD(pnp_card_drivers);                13 static LIST_HEAD(pnp_card_drivers);
 16                                                    14 
 17 static const struct pnp_card_device_id *match_     15 static const struct pnp_card_device_id *match_card(struct pnp_card_driver *drv,
 18                                                    16                                                    struct pnp_card *card)
 19 {                                                  17 {
 20         const struct pnp_card_device_id *drv_i     18         const struct pnp_card_device_id *drv_id = drv->id_table;
 21                                                    19 
 22         while (*drv_id->id) {                      20         while (*drv_id->id) {
 23                 if (compare_pnp_id(card->id, d     21                 if (compare_pnp_id(card->id, drv_id->id)) {
 24                         int i = 0;                 22                         int i = 0;
 25                                                    23 
 26                         for (;;) {                 24                         for (;;) {
 27                                 int found;         25                                 int found;
 28                                 struct pnp_dev     26                                 struct pnp_dev *dev;
 29                                                    27 
 30                                 if (i == PNP_M     28                                 if (i == PNP_MAX_DEVICES ||
 31                                     !*drv_id->     29                                     !*drv_id->devs[i].id)
 32                                         return     30                                         return drv_id;
 33                                 found = 0;         31                                 found = 0;
 34                                 card_for_each_     32                                 card_for_each_dev(card, dev) {
 35                                         if (co     33                                         if (compare_pnp_id(dev->id,
 36                                                    34                                                    drv_id->devs[i].id)) {
 37                                                    35                                                 found = 1;
 38                                                    36                                                 break;
 39                                         }          37                                         }
 40                                 }                  38                                 }
 41                                 if (!found)        39                                 if (!found)
 42                                         break;     40                                         break;
 43                                 i++;               41                                 i++;
 44                         }                          42                         }
 45                 }                                  43                 }
 46                 drv_id++;                          44                 drv_id++;
 47         }                                          45         }
 48         return NULL;                               46         return NULL;
 49 }                                                  47 }
 50                                                    48 
 51 static void card_remove(struct pnp_dev *dev)       49 static void card_remove(struct pnp_dev *dev)
 52 {                                                  50 {
 53         dev->card_link = NULL;                     51         dev->card_link = NULL;
 54 }                                                  52 }
 55                                                    53 
 56 static void card_remove_first(struct pnp_dev *     54 static void card_remove_first(struct pnp_dev *dev)
 57 {                                                  55 {
 58         struct pnp_card_driver *drv = to_pnp_c     56         struct pnp_card_driver *drv = to_pnp_card_driver(dev->driver);
 59                                                    57 
 60         if (!dev->card || !drv)                    58         if (!dev->card || !drv)
 61                 return;                            59                 return;
 62         if (drv->remove)                           60         if (drv->remove)
 63                 drv->remove(dev->card_link);       61                 drv->remove(dev->card_link);
 64         drv->link.remove = &card_remove;           62         drv->link.remove = &card_remove;
 65         kfree(dev->card_link);                     63         kfree(dev->card_link);
 66         card_remove(dev);                          64         card_remove(dev);
 67 }                                                  65 }
 68                                                    66 
 69 static int card_probe(struct pnp_card *card, s     67 static int card_probe(struct pnp_card *card, struct pnp_card_driver *drv)
 70 {                                                  68 {
 71         const struct pnp_card_device_id *id;       69         const struct pnp_card_device_id *id;
 72         struct pnp_card_link *clink;               70         struct pnp_card_link *clink;
 73         struct pnp_dev *dev;                       71         struct pnp_dev *dev;
 74                                                    72 
 75         if (!drv->probe)                           73         if (!drv->probe)
 76                 return 0;                          74                 return 0;
 77         id = match_card(drv, card);                75         id = match_card(drv, card);
 78         if (!id)                                   76         if (!id)
 79                 return 0;                          77                 return 0;
 80                                                    78 
 81         clink = pnp_alloc(sizeof(*clink));         79         clink = pnp_alloc(sizeof(*clink));
 82         if (!clink)                                80         if (!clink)
 83                 return 0;                          81                 return 0;
 84         clink->card = card;                        82         clink->card = card;
 85         clink->driver = drv;                       83         clink->driver = drv;
 86         clink->pm_state = PMSG_ON;                 84         clink->pm_state = PMSG_ON;
 87                                                    85 
 88         if (drv->probe(clink, id) >= 0)            86         if (drv->probe(clink, id) >= 0)
 89                 return 1;                          87                 return 1;
 90                                                    88 
 91         /* Recovery */                             89         /* Recovery */
 92         card_for_each_dev(card, dev) {             90         card_for_each_dev(card, dev) {
 93                 if (dev->card_link == clink)       91                 if (dev->card_link == clink)
 94                         pnp_release_card_devic     92                         pnp_release_card_device(dev);
 95         }                                          93         }
 96         kfree(clink);                              94         kfree(clink);
 97         return 0;                                  95         return 0;
 98 }                                                  96 }
 99                                                    97 
100 /**                                                98 /**
101  * pnp_add_card_id - adds an EISA id to the sp     99  * pnp_add_card_id - adds an EISA id to the specified card
102  * @id: pointer to a pnp_id structure             100  * @id: pointer to a pnp_id structure
103  * @card: pointer to the desired card             101  * @card: pointer to the desired card
104  */                                               102  */
105 static struct pnp_id *pnp_add_card_id(struct p !! 103 int pnp_add_card_id(struct pnp_id *id, struct pnp_card *card)
106 {                                                 104 {
107         struct pnp_id *dev_id, *ptr;           !! 105         struct pnp_id *ptr;
108                                                   106 
109         dev_id = kzalloc(sizeof(struct pnp_id) !! 107         id->next = NULL;
110         if (!dev_id)                           << 
111                 return NULL;                   << 
112                                                << 
113         dev_id->id[0] = id[0];                 << 
114         dev_id->id[1] = id[1];                 << 
115         dev_id->id[2] = id[2];                 << 
116         dev_id->id[3] = tolower(id[3]);        << 
117         dev_id->id[4] = tolower(id[4]);        << 
118         dev_id->id[5] = tolower(id[5]);        << 
119         dev_id->id[6] = tolower(id[6]);        << 
120         dev_id->id[7] = '\0';                  << 
121                                                << 
122         dev_id->next = NULL;                   << 
123         ptr = card->id;                           108         ptr = card->id;
124         while (ptr && ptr->next)                  109         while (ptr && ptr->next)
125                 ptr = ptr->next;                  110                 ptr = ptr->next;
126         if (ptr)                                  111         if (ptr)
127                 ptr->next = dev_id;            !! 112                 ptr->next = id;
128         else                                      113         else
129                 card->id = dev_id;             !! 114                 card->id = id;
130                                                !! 115         return 0;
131         return dev_id;                         << 
132 }                                                 116 }
133                                                   117 
134 static void pnp_free_card_ids(struct pnp_card     118 static void pnp_free_card_ids(struct pnp_card *card)
135 {                                                 119 {
136         struct pnp_id *id;                        120         struct pnp_id *id;
137         struct pnp_id *next;                      121         struct pnp_id *next;
138                                                   122 
139         id = card->id;                            123         id = card->id;
140         while (id) {                              124         while (id) {
141                 next = id->next;                  125                 next = id->next;
142                 kfree(id);                        126                 kfree(id);
143                 id = next;                        127                 id = next;
144         }                                         128         }
145 }                                                 129 }
146                                                   130 
147 static void pnp_release_card(struct device *dm    131 static void pnp_release_card(struct device *dmdev)
148 {                                                 132 {
149         struct pnp_card *card = to_pnp_card(dm    133         struct pnp_card *card = to_pnp_card(dmdev);
150                                                   134 
151         pnp_free_card_ids(card);                  135         pnp_free_card_ids(card);
152         kfree(card);                              136         kfree(card);
153 }                                                 137 }
154                                                   138 
155 struct pnp_card *pnp_alloc_card(struct pnp_pro << 
156 {                                              << 
157         struct pnp_card *card;                 << 
158         struct pnp_id *dev_id;                 << 
159                                                << 
160         card = kzalloc(sizeof(struct pnp_card) << 
161         if (!card)                             << 
162                 return NULL;                   << 
163                                                << 
164         card->protocol = protocol;             << 
165         card->number = id;                     << 
166                                                << 
167         card->dev.parent = &card->protocol->de << 
168         dev_set_name(&card->dev, "%02x:%02x",  << 
169                                                << 
170         card->dev.coherent_dma_mask = DMA_BIT_ << 
171         card->dev.dma_mask = &card->dev.cohere << 
172                                                << 
173         dev_id = pnp_add_card_id(card, pnpid); << 
174         if (!dev_id) {                         << 
175                 kfree(card);                   << 
176                 return NULL;                   << 
177         }                                      << 
178                                                << 
179         return card;                           << 
180 }                                              << 
181                                                << 
182 static ssize_t pnp_show_card_name(struct devic    139 static ssize_t pnp_show_card_name(struct device *dmdev,
183                                   struct devic    140                                   struct device_attribute *attr, char *buf)
184 {                                                 141 {
185         char *str = buf;                          142         char *str = buf;
186         struct pnp_card *card = to_pnp_card(dm    143         struct pnp_card *card = to_pnp_card(dmdev);
187                                                   144 
188         str += sprintf(str, "%s\n", card->name    145         str += sprintf(str, "%s\n", card->name);
189         return (str - buf);                       146         return (str - buf);
190 }                                                 147 }
191                                                   148 
192 static DEVICE_ATTR(name, S_IRUGO, pnp_show_car    149 static DEVICE_ATTR(name, S_IRUGO, pnp_show_card_name, NULL);
193                                                   150 
194 static ssize_t pnp_show_card_ids(struct device    151 static ssize_t pnp_show_card_ids(struct device *dmdev,
195                                  struct device    152                                  struct device_attribute *attr, char *buf)
196 {                                                 153 {
197         char *str = buf;                          154         char *str = buf;
198         struct pnp_card *card = to_pnp_card(dm    155         struct pnp_card *card = to_pnp_card(dmdev);
199         struct pnp_id *pos = card->id;            156         struct pnp_id *pos = card->id;
200                                                   157 
201         while (pos) {                             158         while (pos) {
202                 str += sprintf(str, "%s\n", po    159                 str += sprintf(str, "%s\n", pos->id);
203                 pos = pos->next;                  160                 pos = pos->next;
204         }                                         161         }
205         return (str - buf);                       162         return (str - buf);
206 }                                                 163 }
207                                                   164 
208 static DEVICE_ATTR(card_id, S_IRUGO, pnp_show_    165 static DEVICE_ATTR(card_id, S_IRUGO, pnp_show_card_ids, NULL);
209                                                   166 
210 static int pnp_interface_attach_card(struct pn    167 static int pnp_interface_attach_card(struct pnp_card *card)
211 {                                                 168 {
212         int rc = device_create_file(&card->dev    169         int rc = device_create_file(&card->dev, &dev_attr_name);
213                                                   170 
214         if (rc)                                   171         if (rc)
215                 return rc;                        172                 return rc;
216                                                   173 
217         rc = device_create_file(&card->dev, &d    174         rc = device_create_file(&card->dev, &dev_attr_card_id);
218         if (rc)                                   175         if (rc)
219                 goto err_name;                    176                 goto err_name;
220                                                   177 
221         return 0;                                 178         return 0;
222                                                   179 
223 err_name:                                         180 err_name:
224         device_remove_file(&card->dev, &dev_at    181         device_remove_file(&card->dev, &dev_attr_name);
225         return rc;                                182         return rc;
226 }                                                 183 }
227                                                   184 
228 /**                                               185 /**
229  * pnp_add_card - adds a PnP card to the PnP L    186  * pnp_add_card - adds a PnP card to the PnP Layer
230  * @card: pointer to the card to add              187  * @card: pointer to the card to add
231  */                                               188  */
232 int pnp_add_card(struct pnp_card *card)           189 int pnp_add_card(struct pnp_card *card)
233 {                                                 190 {
234         int error;                                191         int error;
235         struct list_head *pos, *temp;             192         struct list_head *pos, *temp;
236                                                   193 
                                                   >> 194         sprintf(card->dev.bus_id, "%02x:%02x", card->protocol->number,
                                                   >> 195                 card->number);
                                                   >> 196         card->dev.parent = &card->protocol->dev;
237         card->dev.bus = NULL;                     197         card->dev.bus = NULL;
238         card->dev.release = &pnp_release_card;    198         card->dev.release = &pnp_release_card;
239         error = device_register(&card->dev);      199         error = device_register(&card->dev);
240         if (error) {                              200         if (error) {
241                 dev_err(&card->dev, "could not    201                 dev_err(&card->dev, "could not register (err=%d)\n", error);
242                 return error;                     202                 return error;
243         }                                         203         }
244                                                   204 
245         pnp_interface_attach_card(card);          205         pnp_interface_attach_card(card);
246         spin_lock(&pnp_lock);                     206         spin_lock(&pnp_lock);
247         list_add_tail(&card->global_list, &pnp    207         list_add_tail(&card->global_list, &pnp_cards);
248         list_add_tail(&card->protocol_list, &c    208         list_add_tail(&card->protocol_list, &card->protocol->cards);
249         spin_unlock(&pnp_lock);                   209         spin_unlock(&pnp_lock);
250                                                   210 
251         /* we wait until now to add devices in    211         /* we wait until now to add devices in order to ensure the drivers
252          * will be able to use all of the rela    212          * will be able to use all of the related devices on the card
253          * without waiting an unreasonable len    213          * without waiting an unreasonable length of time */
254         list_for_each(pos, &card->devices) {      214         list_for_each(pos, &card->devices) {
255                 struct pnp_dev *dev = card_to_    215                 struct pnp_dev *dev = card_to_pnp_dev(pos);
256                 __pnp_add_device(dev);            216                 __pnp_add_device(dev);
257         }                                         217         }
258                                                   218 
259         /* match with card drivers */             219         /* match with card drivers */
260         list_for_each_safe(pos, temp, &pnp_car    220         list_for_each_safe(pos, temp, &pnp_card_drivers) {
261                 struct pnp_card_driver *drv =     221                 struct pnp_card_driver *drv =
262                     list_entry(pos, struct pnp    222                     list_entry(pos, struct pnp_card_driver,
263                                global_list);      223                                global_list);
264                 card_probe(card, drv);            224                 card_probe(card, drv);
265         }                                         225         }
266         return 0;                                 226         return 0;
267 }                                                 227 }
268                                                   228 
269 /**                                               229 /**
270  * pnp_remove_card - removes a PnP card from t    230  * pnp_remove_card - removes a PnP card from the PnP Layer
271  * @card: pointer to the card to remove           231  * @card: pointer to the card to remove
272  */                                               232  */
273 void pnp_remove_card(struct pnp_card *card)       233 void pnp_remove_card(struct pnp_card *card)
274 {                                                 234 {
275         struct list_head *pos, *temp;             235         struct list_head *pos, *temp;
276                                                   236 
277         device_unregister(&card->dev);            237         device_unregister(&card->dev);
278         spin_lock(&pnp_lock);                     238         spin_lock(&pnp_lock);
279         list_del(&card->global_list);             239         list_del(&card->global_list);
280         list_del(&card->protocol_list);           240         list_del(&card->protocol_list);
281         spin_unlock(&pnp_lock);                   241         spin_unlock(&pnp_lock);
282         list_for_each_safe(pos, temp, &card->d    242         list_for_each_safe(pos, temp, &card->devices) {
283                 struct pnp_dev *dev = card_to_    243                 struct pnp_dev *dev = card_to_pnp_dev(pos);
284                 pnp_remove_card_device(dev);      244                 pnp_remove_card_device(dev);
285         }                                         245         }
286 }                                                 246 }
287                                                   247 
288 /**                                               248 /**
289  * pnp_add_card_device - adds a device to the     249  * pnp_add_card_device - adds a device to the specified card
290  * @card: pointer to the card to add to           250  * @card: pointer to the card to add to
291  * @dev: pointer to the device to add             251  * @dev: pointer to the device to add
292  */                                               252  */
293 int pnp_add_card_device(struct pnp_card *card,    253 int pnp_add_card_device(struct pnp_card *card, struct pnp_dev *dev)
294 {                                                 254 {
295         dev->dev.parent = &card->dev;             255         dev->dev.parent = &card->dev;
296         dev->card_link = NULL;                    256         dev->card_link = NULL;
297         dev_set_name(&dev->dev, "%02x:%02x.%02 !! 257         snprintf(dev->dev.bus_id, BUS_ID_SIZE, "%02x:%02x.%02x",
298                      dev->protocol->number, ca !! 258                  dev->protocol->number, card->number, dev->number);
299         spin_lock(&pnp_lock);                     259         spin_lock(&pnp_lock);
300         dev->card = card;                         260         dev->card = card;
301         list_add_tail(&dev->card_list, &card->    261         list_add_tail(&dev->card_list, &card->devices);
302         spin_unlock(&pnp_lock);                   262         spin_unlock(&pnp_lock);
303         return 0;                                 263         return 0;
304 }                                                 264 }
305                                                   265 
306 /**                                               266 /**
307  * pnp_remove_card_device- removes a device fr    267  * pnp_remove_card_device- removes a device from the specified card
308  * @dev: pointer to the device to remove          268  * @dev: pointer to the device to remove
309  */                                               269  */
310 void pnp_remove_card_device(struct pnp_dev *de    270 void pnp_remove_card_device(struct pnp_dev *dev)
311 {                                                 271 {
312         spin_lock(&pnp_lock);                     272         spin_lock(&pnp_lock);
313         dev->card = NULL;                         273         dev->card = NULL;
314         list_del(&dev->card_list);                274         list_del(&dev->card_list);
315         spin_unlock(&pnp_lock);                   275         spin_unlock(&pnp_lock);
316         __pnp_remove_device(dev);                 276         __pnp_remove_device(dev);
317 }                                                 277 }
318                                                   278 
319 /**                                               279 /**
320  * pnp_request_card_device - Searches for a Pn    280  * pnp_request_card_device - Searches for a PnP device under the specified card
321  * @clink: pointer to the card link, cannot be    281  * @clink: pointer to the card link, cannot be NULL
322  * @id: pointer to a PnP ID structure that exp    282  * @id: pointer to a PnP ID structure that explains the rules for finding the device
323  * @from: Starting place to search from. If NU    283  * @from: Starting place to search from. If NULL it will start from the begining.
324  */                                               284  */
325 struct pnp_dev *pnp_request_card_device(struct    285 struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink,
326                                         const     286                                         const char *id, struct pnp_dev *from)
327 {                                                 287 {
328         struct list_head *pos;                    288         struct list_head *pos;
329         struct pnp_dev *dev;                      289         struct pnp_dev *dev;
330         struct pnp_card_driver *drv;              290         struct pnp_card_driver *drv;
331         struct pnp_card *card;                    291         struct pnp_card *card;
332                                                   292 
333         if (!clink || !id)                        293         if (!clink || !id)
334                 return NULL;                      294                 return NULL;
335                                                   295 
336         card = clink->card;                       296         card = clink->card;
337         drv = clink->driver;                      297         drv = clink->driver;
338         if (!from) {                              298         if (!from) {
339                 pos = card->devices.next;         299                 pos = card->devices.next;
340         } else {                                  300         } else {
341                 if (from->card != card)           301                 if (from->card != card)
342                         return NULL;              302                         return NULL;
343                 pos = from->card_list.next;       303                 pos = from->card_list.next;
344         }                                         304         }
345         while (pos != &card->devices) {           305         while (pos != &card->devices) {
346                 dev = card_to_pnp_dev(pos);       306                 dev = card_to_pnp_dev(pos);
347                 if ((!dev->card_link) && compa    307                 if ((!dev->card_link) && compare_pnp_id(dev->id, id))
348                         goto found;               308                         goto found;
349                 pos = pos->next;                  309                 pos = pos->next;
350         }                                         310         }
351                                                   311 
352         return NULL;                              312         return NULL;
353                                                   313 
354 found:                                            314 found:
355         dev->card_link = clink;                   315         dev->card_link = clink;
356         dev->dev.driver = &drv->link.driver;      316         dev->dev.driver = &drv->link.driver;
357         if (pnp_bus_type.probe(&dev->dev))        317         if (pnp_bus_type.probe(&dev->dev))
358                 goto err_out;                     318                 goto err_out;
359         if (device_bind_driver(&dev->dev))        319         if (device_bind_driver(&dev->dev))
360                 goto err_out;                     320                 goto err_out;
361                                                   321 
362         return dev;                               322         return dev;
363                                                   323 
364 err_out:                                          324 err_out:
365         dev->dev.driver = NULL;                   325         dev->dev.driver = NULL;
366         dev->card_link = NULL;                    326         dev->card_link = NULL;
367         return NULL;                              327         return NULL;
368 }                                                 328 }
369                                                   329 
370 /**                                               330 /**
371  * pnp_release_card_device - call this when th    331  * pnp_release_card_device - call this when the driver no longer needs the device
372  * @dev: pointer to the PnP device stucture       332  * @dev: pointer to the PnP device stucture
373  */                                               333  */
374 void pnp_release_card_device(struct pnp_dev *d    334 void pnp_release_card_device(struct pnp_dev *dev)
375 {                                                 335 {
376         struct pnp_card_driver *drv = dev->car    336         struct pnp_card_driver *drv = dev->card_link->driver;
377                                                   337 
378         drv->link.remove = &card_remove;          338         drv->link.remove = &card_remove;
379         device_release_driver(&dev->dev);         339         device_release_driver(&dev->dev);
380         drv->link.remove = &card_remove_first;    340         drv->link.remove = &card_remove_first;
381 }                                                 341 }
382                                                   342 
383 /*                                                343 /*
384  * suspend/resume callbacks                       344  * suspend/resume callbacks
385  */                                               345  */
386 static int card_suspend(struct pnp_dev *dev, p    346 static int card_suspend(struct pnp_dev *dev, pm_message_t state)
387 {                                                 347 {
388         struct pnp_card_link *link = dev->card    348         struct pnp_card_link *link = dev->card_link;
389                                                   349 
390         if (link->pm_state.event == state.even    350         if (link->pm_state.event == state.event)
391                 return 0;                         351                 return 0;
392         link->pm_state = state;                   352         link->pm_state = state;
393         return link->driver->suspend(link, sta    353         return link->driver->suspend(link, state);
394 }                                                 354 }
395                                                   355 
396 static int card_resume(struct pnp_dev *dev)       356 static int card_resume(struct pnp_dev *dev)
397 {                                                 357 {
398         struct pnp_card_link *link = dev->card    358         struct pnp_card_link *link = dev->card_link;
399                                                   359 
400         if (link->pm_state.event == PM_EVENT_O    360         if (link->pm_state.event == PM_EVENT_ON)
401                 return 0;                         361                 return 0;
402         link->pm_state = PMSG_ON;                 362         link->pm_state = PMSG_ON;
403         link->driver->resume(link);               363         link->driver->resume(link);
404         return 0;                                 364         return 0;
405 }                                                 365 }
406                                                   366 
407 /**                                               367 /**
408  * pnp_register_card_driver - registers a PnP     368  * pnp_register_card_driver - registers a PnP card driver with the PnP Layer
409  * @drv: pointer to the driver to register        369  * @drv: pointer to the driver to register
410  */                                               370  */
411 int pnp_register_card_driver(struct pnp_card_d    371 int pnp_register_card_driver(struct pnp_card_driver *drv)
412 {                                                 372 {
413         int error;                                373         int error;
414         struct list_head *pos, *temp;             374         struct list_head *pos, *temp;
415                                                   375 
416         drv->link.name = drv->name;               376         drv->link.name = drv->name;
417         drv->link.id_table = NULL;      /* thi    377         drv->link.id_table = NULL;      /* this will disable auto matching */
418         drv->link.flags = drv->flags;             378         drv->link.flags = drv->flags;
419         drv->link.probe = NULL;                   379         drv->link.probe = NULL;
420         drv->link.remove = &card_remove_first;    380         drv->link.remove = &card_remove_first;
421         drv->link.suspend = drv->suspend ? car    381         drv->link.suspend = drv->suspend ? card_suspend : NULL;
422         drv->link.resume = drv->resume ? card_    382         drv->link.resume = drv->resume ? card_resume : NULL;
423                                                   383 
424         error = pnp_register_driver(&drv->link    384         error = pnp_register_driver(&drv->link);
425         if (error < 0)                            385         if (error < 0)
426                 return error;                     386                 return error;
427                                                   387 
428         spin_lock(&pnp_lock);                     388         spin_lock(&pnp_lock);
429         list_add_tail(&drv->global_list, &pnp_    389         list_add_tail(&drv->global_list, &pnp_card_drivers);
430         spin_unlock(&pnp_lock);                   390         spin_unlock(&pnp_lock);
431                                                   391 
432         list_for_each_safe(pos, temp, &pnp_car    392         list_for_each_safe(pos, temp, &pnp_cards) {
433                 struct pnp_card *card =           393                 struct pnp_card *card =
434                     list_entry(pos, struct pnp    394                     list_entry(pos, struct pnp_card, global_list);
435                 card_probe(card, drv);            395                 card_probe(card, drv);
436         }                                         396         }
437         return 0;                                 397         return 0;
438 }                                                 398 }
439                                                   399 
440 /**                                               400 /**
441  * pnp_unregister_card_driver - unregisters a     401  * pnp_unregister_card_driver - unregisters a PnP card driver from the PnP Layer
442  * @drv: pointer to the driver to unregister      402  * @drv: pointer to the driver to unregister
443  */                                               403  */
444 void pnp_unregister_card_driver(struct pnp_car    404 void pnp_unregister_card_driver(struct pnp_card_driver *drv)
445 {                                                 405 {
446         spin_lock(&pnp_lock);                     406         spin_lock(&pnp_lock);
447         list_del(&drv->global_list);              407         list_del(&drv->global_list);
448         spin_unlock(&pnp_lock);                   408         spin_unlock(&pnp_lock);
449         pnp_unregister_driver(&drv->link);        409         pnp_unregister_driver(&drv->link);
450 }                                                 410 }
451                                                   411 
452 EXPORT_SYMBOL(pnp_request_card_device);           412 EXPORT_SYMBOL(pnp_request_card_device);
453 EXPORT_SYMBOL(pnp_release_card_device);           413 EXPORT_SYMBOL(pnp_release_card_device);
454 EXPORT_SYMBOL(pnp_register_card_driver);          414 EXPORT_SYMBOL(pnp_register_card_driver);
455 EXPORT_SYMBOL(pnp_unregister_card_driver);        415 EXPORT_SYMBOL(pnp_unregister_card_driver);
456                                                   416 
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