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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.c19
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/media/video/uvc/uvc_video.c b/drivers/media/video/uvc/uvc_video.c
index b7160b15e78..6d0ac3be819 100644
--- a/drivers/media/video/uvc/uvc_video.c
+++ b/drivers/media/video/uvc/uvc_video.c
@@ -368,7 +368,7 @@ static int uvc_video_decode_start(struct uvc_video_device *video,
/* Synchronize to the input stream by waiting for the FID bit to be
* toggled when the the buffer state is not UVC_BUF_STATE_ACTIVE.
- * queue->last_fid is initialized to -1, so the first isochronous
+ * video->last_fid is initialized to -1, so the first isochronous
* frame will always be in sync.
*
* If the device doesn't toggle the FID bit, invert video->last_fid
@@ -395,7 +395,7 @@ static int uvc_video_decode_start(struct uvc_video_device *video,
* last payload can be lost anyway). We thus must check if the FID has
* been toggled.
*
- * queue->last_fid is initialized to -1, so the first isochronous
+ * video->last_fid is initialized to -1, so the first isochronous
* frame will never trigger an end of frame detection.
*
* Empty buffers (bytesused == 0) don't trigger end of frame detection
@@ -512,7 +512,7 @@ static void uvc_video_decode_bulk(struct urb *urb,
/* If the URB is the first of its payload, decode and save the
* header.
*/
- if (video->bulk.header_size == 0) {
+ if (video->bulk.header_size == 0 && !video->bulk.skip_payload) {
do {
ret = uvc_video_decode_start(video, buf, mem, len);
if (ret == -EAGAIN)
@@ -522,14 +522,13 @@ static void uvc_video_decode_bulk(struct urb *urb,
/* If an error occured skip the rest of the payload. */
if (ret < 0 || buf == NULL) {
video->bulk.skip_payload = 1;
- return;
- }
+ } else {
+ memcpy(video->bulk.header, mem, ret);
+ video->bulk.header_size = ret;
- video->bulk.header_size = ret;
- memcpy(video->bulk.header, mem, video->bulk.header_size);
-
- mem += ret;
- len -= ret;
+ mem += ret;
+ len -= ret;
+ }
}
/* The buffer queue might have been cancelled while a bulk transfer