1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c
index 2ed24527ecd6..65e4901f4db7 100644
--- a/drivers/media/video/gspca/gspca.c
+++ b/drivers/media/video/gspca/gspca.c
@@ -422,6 +422,7 @@ static void destroy_urbs(struct gspca_dev *gspca_dev)
                 if (urb == NULL)
                         break;
 
+                BUG_ON(!gspca_dev->dev);
                 gspca_dev->urb[i] = NULL;
                 if (!gspca_dev->present)
                         usb_kill_urb(urb);
@@ -1950,8 +1951,12 @@ void gspca_disconnect(struct usb_interface *intf)
 {
         struct gspca_dev *gspca_dev = usb_get_intfdata(intf);
 
+        mutex_lock(&gspca_dev->usb_lock);
         gspca_dev->present = 0;
+        mutex_unlock(&gspca_dev->usb_lock);
 
+        destroy_urbs(gspca_dev);
+        gspca_dev->dev = NULL;
         usb_set_intfdata(intf, NULL);
 
         /* release the device */