X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fusb%2Fcore%2Fnotify.c;h=6b36897ca151998ab28f07c12f0e9baef9e372fe;hb=eaafbc3a8adab16babe2c20e54ad3ba40d1fbbc9;hp=b042676af0a5b11b70b1fa9e422aba2de4f2a551;hpb=c4e00fac42f268ed0a547cdd1d12bb8399864040;p=powerpc.git

diff --git a/drivers/usb/core/notify.c b/drivers/usb/core/notify.c
index b042676af0..6b36897ca1 100644
--- 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)