USB: Allow autosuspend delay to equal 0

[powerpc.git] / drivers / usb / core / notify.c

diff --git a/drivers/usb/core/notify.c b/drivers/usb/core/notify.c
index b042676..6b36897 100644 (file)
--- a/drivers/usb/core/notify.c
+++ b/drivers/usb/core/notify.c
@@ -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)