Merge commit 'ftrace/function-graph' into next

[deliverable/linux.git] / drivers / media / video / gspca / gspca.c

diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c
index 2ed24527ecd61cea70287dd668725445799ee4fa..65e4901f4db70a713a4b1d60c0400c4ec9f9250a 100644 (file)
--- 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 */