V4L/DVB (8209): uvcvideo: Don't free URB buffers on suspend.

All submitted URBs must be killed at suspend time, but URB buffers don't have
to be freed. Avoiding a free on suspend/reallocate on resume lowers the presure
on system memory.

Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/media/video/uvc/uvcvideo.h b/drivers/media/video/uvc/uvcvideo.h
index a995a780db1c..2444b8a9d2a0 100644
--- a/drivers/media/video/uvc/uvcvideo.h
+++ b/drivers/media/video/uvc/uvcvideo.h
@@ -602,6 +602,8 @@ struct uvc_video_device {
 
         struct urb *urb[UVC_URBS];
         char *urb_buffer[UVC_URBS];
+        dma_addr_t urb_dma[UVC_URBS];
+        unsigned int urb_size;
 
         __u8 last_fid;
 };