Merge branch 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa...

[linux-2.6-omap-h63xx.git] / drivers / media / video / gspca / gspca.c

diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c
index 5e36b9a4ae3ea289ee016af8041230ef622ef0bf..65e4901f4db70a713a4b1d60c0400c4ec9f9250a 100644 (file)
--- a/drivers/media/video/gspca/gspca.c
+++ b/drivers/media/video/gspca/gspca.c
@@ -422,8 +422,10 @@ static void destroy_urbs(struct gspca_dev *gspca_dev)
                if (urb == NULL)
                        break;
 
+               BUG_ON(!gspca_dev->dev);
                gspca_dev->urb[i] = NULL;
-               usb_kill_urb(urb);
+               if (!gspca_dev->present)
+                       usb_kill_urb(urb);
                if (urb->transfer_buffer != NULL)
                        usb_buffer_free(gspca_dev->dev,
                                        urb->transfer_buffer_length,
@@ -1949,9 +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;
-       gspca_dev->streaming = 0;
+       mutex_unlock(&gspca_dev->usb_lock);
 
+       destroy_urbs(gspca_dev);
+       gspca_dev->dev = NULL;
        usb_set_intfdata(intf, NULL);
 
        /* release the device */