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path: root/drivers/media/video/uvc/uvc_video.c
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Diffstat (limited to 'drivers/media/video/uvc/uvc_video.c')
-rw-r--r--drivers/media/video/uvc/uvc_video.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/media/video/uvc/uvc_video.c b/drivers/media/video/uvc/uvc_video.c
index b76b0ac0958f..7ac4347ca09e 100644
--- a/drivers/media/video/uvc/uvc_video.c
+++ b/drivers/media/video/uvc/uvc_video.c
@@ -1188,7 +1188,11 @@ static void uvc_video_decode_bulk(struct urb *urb, struct uvc_streaming *stream,
u8 *mem;
int len, ret;
- if (urb->actual_length == 0)
+ /*
+ * Ignore ZLPs if they're not part of a frame, otherwise process them
+ * to trigger the end of payload detection.
+ */
+ if (urb->actual_length == 0 && stream->bulk.header_size == 0)
return;
mem = urb->transfer_buffer;
@@ -1594,7 +1598,7 @@ static int uvc_init_video(struct uvc_streaming *stream, gfp_t gfp_flags)
psize = le16_to_cpu(ep->desc.wMaxPacketSize);
psize = (psize & 0x07ff) * (1 + ((psize >> 11) & 3));
if (psize >= bandwidth && psize <= best_psize) {
- altsetting = i;
+ altsetting = alts->desc.bAlternateSetting;
best_psize = psize;
best_ep = ep;
}