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path: root/drivers/usb/usbip/stub_dev.c
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Diffstat (limited to 'drivers/usb/usbip/stub_dev.c')
-rw-r--r--drivers/usb/usbip/stub_dev.c43
1 files changed, 26 insertions, 17 deletions
diff --git a/drivers/usb/usbip/stub_dev.c b/drivers/usb/usbip/stub_dev.c
index dd8ef36ab10e..c0d6ff1baa72 100644
--- a/drivers/usb/usbip/stub_dev.c
+++ b/drivers/usb/usbip/stub_dev.c
@@ -300,9 +300,9 @@ static int stub_probe(struct usb_device *udev)
300 struct stub_device *sdev = NULL; 300 struct stub_device *sdev = NULL;
301 const char *udev_busid = dev_name(&udev->dev); 301 const char *udev_busid = dev_name(&udev->dev);
302 struct bus_id_priv *busid_priv; 302 struct bus_id_priv *busid_priv;
303 int rc; 303 int rc = 0;
304 304
305 dev_dbg(&udev->dev, "Enter\n"); 305 dev_dbg(&udev->dev, "Enter probe\n");
306 306
307 /* check we should claim or not by busid_table */ 307 /* check we should claim or not by busid_table */
308 busid_priv = get_busid_priv(udev_busid); 308 busid_priv = get_busid_priv(udev_busid);
@@ -317,13 +317,15 @@ static int stub_probe(struct usb_device *udev)
317 * other matched drivers by the driver core. 317 * other matched drivers by the driver core.
318 * See driver_probe_device() in driver/base/dd.c 318 * See driver_probe_device() in driver/base/dd.c
319 */ 319 */
320 return -ENODEV; 320 rc = -ENODEV;
321 goto call_put_busid_priv;
321 } 322 }
322 323
323 if (udev->descriptor.bDeviceClass == USB_CLASS_HUB) { 324 if (udev->descriptor.bDeviceClass == USB_CLASS_HUB) {
324 dev_dbg(&udev->dev, "%s is a usb hub device... skip!\n", 325 dev_dbg(&udev->dev, "%s is a usb hub device... skip!\n",
325 udev_busid); 326 udev_busid);
326 return -ENODEV; 327 rc = -ENODEV;
328 goto call_put_busid_priv;
327 } 329 }
328 330
329 if (!strcmp(udev->bus->bus_name, "vhci_hcd")) { 331 if (!strcmp(udev->bus->bus_name, "vhci_hcd")) {
@@ -331,13 +333,16 @@ static int stub_probe(struct usb_device *udev)
331 "%s is attached on vhci_hcd... skip!\n", 333 "%s is attached on vhci_hcd... skip!\n",
332 udev_busid); 334 udev_busid);
333 335
334 return -ENODEV; 336 rc = -ENODEV;
337 goto call_put_busid_priv;
335 } 338 }
336 339
337 /* ok, this is my device */ 340 /* ok, this is my device */
338 sdev = stub_device_alloc(udev); 341 sdev = stub_device_alloc(udev);
339 if (!sdev) 342 if (!sdev) {
340 return -ENOMEM; 343 rc = -ENOMEM;
344 goto call_put_busid_priv;
345 }
341 346
342 dev_info(&udev->dev, 347 dev_info(&udev->dev,
343 "usbip-host: register new device (bus %u dev %u)\n", 348 "usbip-host: register new device (bus %u dev %u)\n",
@@ -369,7 +374,9 @@ static int stub_probe(struct usb_device *udev)
369 } 374 }
370 busid_priv->status = STUB_BUSID_ALLOC; 375 busid_priv->status = STUB_BUSID_ALLOC;
371 376
372 return 0; 377 rc = 0;
378 goto call_put_busid_priv;
379
373err_files: 380err_files:
374 usb_hub_release_port(udev->parent, udev->portnum, 381 usb_hub_release_port(udev->parent, udev->portnum,
375 (struct usb_dev_state *) udev); 382 (struct usb_dev_state *) udev);
@@ -379,6 +386,9 @@ err_port:
379 386
380 busid_priv->sdev = NULL; 387 busid_priv->sdev = NULL;
381 stub_device_free(sdev); 388 stub_device_free(sdev);
389
390call_put_busid_priv:
391 put_busid_priv(busid_priv);
382 return rc; 392 return rc;
383} 393}
384 394
@@ -404,7 +414,7 @@ static void stub_disconnect(struct usb_device *udev)
404 struct bus_id_priv *busid_priv; 414 struct bus_id_priv *busid_priv;
405 int rc; 415 int rc;
406 416
407 dev_dbg(&udev->dev, "Enter\n"); 417 dev_dbg(&udev->dev, "Enter disconnect\n");
408 418
409 busid_priv = get_busid_priv(udev_busid); 419 busid_priv = get_busid_priv(udev_busid);
410 if (!busid_priv) { 420 if (!busid_priv) {
@@ -417,7 +427,7 @@ static void stub_disconnect(struct usb_device *udev)
417 /* get stub_device */ 427 /* get stub_device */
418 if (!sdev) { 428 if (!sdev) {
419 dev_err(&udev->dev, "could not get device"); 429 dev_err(&udev->dev, "could not get device");
420 return; 430 goto call_put_busid_priv;
421 } 431 }
422 432
423 dev_set_drvdata(&udev->dev, NULL); 433 dev_set_drvdata(&udev->dev, NULL);
@@ -432,12 +442,12 @@ static void stub_disconnect(struct usb_device *udev)
432 (struct usb_dev_state *) udev); 442 (struct usb_dev_state *) udev);
433 if (rc) { 443 if (rc) {
434 dev_dbg(&udev->dev, "unable to release port\n"); 444 dev_dbg(&udev->dev, "unable to release port\n");
435 return; 445 goto call_put_busid_priv;
436 } 446 }
437 447
438 /* If usb reset is called from event handler */ 448 /* If usb reset is called from event handler */
439 if (usbip_in_eh(current)) 449 if (usbip_in_eh(current))
440 return; 450 goto call_put_busid_priv;
441 451
442 /* shutdown the current connection */ 452 /* shutdown the current connection */
443 shutdown_busid(busid_priv); 453 shutdown_busid(busid_priv);
@@ -448,12 +458,11 @@ static void stub_disconnect(struct usb_device *udev)
448 busid_priv->sdev = NULL; 458 busid_priv->sdev = NULL;
449 stub_device_free(sdev); 459 stub_device_free(sdev);
450 460
451 if (busid_priv->status == STUB_BUSID_ALLOC) { 461 if (busid_priv->status == STUB_BUSID_ALLOC)
452 busid_priv->status = STUB_BUSID_ADDED; 462 busid_priv->status = STUB_BUSID_ADDED;
453 } else { 463
454 busid_priv->status = STUB_BUSID_OTHER; 464call_put_busid_priv:
455 del_match_busid((char *)udev_busid); 465 put_busid_priv(busid_priv);
456 }
457} 466}
458 467
459#ifdef CONFIG_PM 468#ifdef CONFIG_PM