diff options
Diffstat (limited to 'drivers/pci/hotplug/fakephp.c')
-rw-r--r-- | drivers/pci/hotplug/fakephp.c | 42 |
1 files changed, 26 insertions, 16 deletions
diff --git a/drivers/pci/hotplug/fakephp.c b/drivers/pci/hotplug/fakephp.c index b0e7de9e536d..d8649e127298 100644 --- a/drivers/pci/hotplug/fakephp.c +++ b/drivers/pci/hotplug/fakephp.c | |||
@@ -195,13 +195,13 @@ static void remove_slot_worker(struct work_struct *work) | |||
195 | * Tries hard not to re-enable already existing devices; | 195 | * Tries hard not to re-enable already existing devices; |
196 | * also handles scanning of subfunctions. | 196 | * also handles scanning of subfunctions. |
197 | */ | 197 | */ |
198 | static void pci_rescan_slot(struct pci_dev *temp) | 198 | static int pci_rescan_slot(struct pci_dev *temp) |
199 | { | 199 | { |
200 | struct pci_bus *bus = temp->bus; | 200 | struct pci_bus *bus = temp->bus; |
201 | struct pci_dev *dev; | 201 | struct pci_dev *dev; |
202 | int func; | 202 | int func; |
203 | int retval; | ||
204 | u8 hdr_type; | 203 | u8 hdr_type; |
204 | int count = 0; | ||
205 | 205 | ||
206 | if (!pci_read_config_byte(temp, PCI_HEADER_TYPE, &hdr_type)) { | 206 | if (!pci_read_config_byte(temp, PCI_HEADER_TYPE, &hdr_type)) { |
207 | temp->hdr_type = hdr_type & 0x7f; | 207 | temp->hdr_type = hdr_type & 0x7f; |
@@ -213,17 +213,12 @@ static void pci_rescan_slot(struct pci_dev *temp) | |||
213 | dbg("New device on %s function %x:%x\n", | 213 | dbg("New device on %s function %x:%x\n", |
214 | bus->name, temp->devfn >> 3, | 214 | bus->name, temp->devfn >> 3, |
215 | temp->devfn & 7); | 215 | temp->devfn & 7); |
216 | retval = pci_bus_add_device(dev); | 216 | count++; |
217 | if (retval) | ||
218 | dev_err(&dev->dev, "error adding " | ||
219 | "device, continuing.\n"); | ||
220 | else | ||
221 | add_slot(dev); | ||
222 | } | 217 | } |
223 | } | 218 | } |
224 | /* multifunction device? */ | 219 | /* multifunction device? */ |
225 | if (!(hdr_type & 0x80)) | 220 | if (!(hdr_type & 0x80)) |
226 | return; | 221 | return count; |
227 | 222 | ||
228 | /* continue scanning for other functions */ | 223 | /* continue scanning for other functions */ |
229 | for (func = 1, temp->devfn++; func < 8; func++, temp->devfn++) { | 224 | for (func = 1, temp->devfn++; func < 8; func++, temp->devfn++) { |
@@ -239,16 +234,13 @@ static void pci_rescan_slot(struct pci_dev *temp) | |||
239 | dbg("New device on %s function %x:%x\n", | 234 | dbg("New device on %s function %x:%x\n", |
240 | bus->name, temp->devfn >> 3, | 235 | bus->name, temp->devfn >> 3, |
241 | temp->devfn & 7); | 236 | temp->devfn & 7); |
242 | retval = pci_bus_add_device(dev); | 237 | count++; |
243 | if (retval) | ||
244 | dev_err(&dev->dev, "error adding " | ||
245 | "device, continuing.\n"); | ||
246 | else | ||
247 | add_slot(dev); | ||
248 | } | 238 | } |
249 | } | 239 | } |
250 | } | 240 | } |
251 | } | 241 | } |
242 | |||
243 | return count; | ||
252 | } | 244 | } |
253 | 245 | ||
254 | 246 | ||
@@ -262,6 +254,8 @@ static void pci_rescan_bus(const struct pci_bus *bus) | |||
262 | { | 254 | { |
263 | unsigned int devfn; | 255 | unsigned int devfn; |
264 | struct pci_dev *dev; | 256 | struct pci_dev *dev; |
257 | int retval; | ||
258 | int found = 0; | ||
265 | dev = alloc_pci_dev(); | 259 | dev = alloc_pci_dev(); |
266 | if (!dev) | 260 | if (!dev) |
267 | return; | 261 | return; |
@@ -270,7 +264,23 @@ static void pci_rescan_bus(const struct pci_bus *bus) | |||
270 | dev->sysdata = bus->sysdata; | 264 | dev->sysdata = bus->sysdata; |
271 | for (devfn = 0; devfn < 0x100; devfn += 8) { | 265 | for (devfn = 0; devfn < 0x100; devfn += 8) { |
272 | dev->devfn = devfn; | 266 | dev->devfn = devfn; |
273 | pci_rescan_slot(dev); | 267 | found += pci_rescan_slot(dev); |
268 | } | ||
269 | |||
270 | if (found) { | ||
271 | pci_bus_assign_resources(bus); | ||
272 | list_for_each_entry(dev, &bus->devices, bus_list) { | ||
273 | /* Skip already-added devices */ | ||
274 | if (dev->is_added) | ||
275 | continue; | ||
276 | retval = pci_bus_add_device(dev); | ||
277 | if (retval) | ||
278 | dev_err(&dev->dev, | ||
279 | "Error adding device, continuing\n"); | ||
280 | else | ||
281 | add_slot(dev); | ||
282 | } | ||
283 | pci_bus_add_devices(bus); | ||
274 | } | 284 | } |
275 | kfree(dev); | 285 | kfree(dev); |
276 | } | 286 | } |