Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx

[linux-2.6-omap-h63xx.git] / drivers / usb / core / notify.c

diff --git a/drivers/usb/core/notify.c b/drivers/usb/core/notify.c
index b042676af0a5b11b70b1fa9e422aba2de4f2a551..7542dce3f5a1e2b01bcbd2ef78c08bd870c31b1a 100644 (file)
--- a/drivers/usb/core/notify.c
+++ b/drivers/usb/core/notify.c
@@ -33,7 +33,7 @@ EXPORT_SYMBOL_GPL(usb_register_notify);
  * usb_unregister_notify - unregister a notifier callback
  * @nb: pointer to the notifier block for the callback events.
  *
- * usb_register_notifier() must have been previously called for this function
+ * usb_register_notify() must have been previously called for this function
  * to work properly.
  */
 void usb_unregister_notify(struct notifier_block *nb)
@@ -50,8 +50,11 @@ void usb_notify_add_device(struct usb_device *udev)
 
 void usb_notify_remove_device(struct usb_device *udev)
 {
+       /* Protect against simultaneous usbfs open */
+       mutex_lock(&usbfs_mutex);
        blocking_notifier_call_chain(&usb_notifier_list,
                        USB_DEVICE_REMOVE, udev);
+       mutex_unlock(&usbfs_mutex);
 }
 
 void usb_notify_add_bus(struct usb_bus *ubus)