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path: root/drivers/usb/core/notify.c
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Diffstat (limited to 'drivers/usb/core/notify.c')
-rw-r--r--drivers/usb/core/notify.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/core/notify.c b/drivers/usb/core/notify.c
index b042676af0a..6b36897ca15 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)