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Diffstat (limited to 'drivers/media/video/uvc/uvc_video.c')
-rw-r--r--drivers/media/video/uvc/uvc_video.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/media/video/uvc/uvc_video.c b/drivers/media/video/uvc/uvc_video.c
index 5673d673504b..fc766b9f24c5 100644
--- a/drivers/media/video/uvc/uvc_video.c
+++ b/drivers/media/video/uvc/uvc_video.c
@@ -89,15 +89,19 @@ int uvc_query_ctrl(struct uvc_device *dev, __u8 query, __u8 unit,
static void uvc_fixup_video_ctrl(struct uvc_streaming *stream,
struct uvc_streaming_control *ctrl)
{
- struct uvc_format *format;
+ struct uvc_format *format = NULL;
struct uvc_frame *frame = NULL;
unsigned int i;
- if (ctrl->bFormatIndex <= 0 ||
- ctrl->bFormatIndex > stream->nformats)
- return;
+ for (i = 0; i < stream->nformats; ++i) {
+ if (stream->format[i].index == ctrl->bFormatIndex) {
+ format = &stream->format[i];
+ break;
+ }
+ }
- format = &stream->format[ctrl->bFormatIndex - 1];
+ if (format == NULL)
+ return;
for (i = 0; i < format->nframes; ++i) {
if (format->frame[i].bFrameIndex == ctrl->bFrameIndex) {
@@ -390,11 +394,11 @@ int uvc_commit_video(struct uvc_streaming *stream,
*
* uvc_video_decode_end is called with header data at the end of a bulk or
* isochronous payload. It performs any additional header data processing and
- * returns 0 or a negative error code if an error occured. As header data have
+ * returns 0 or a negative error code if an error occurred. As header data have
* already been processed by uvc_video_decode_start, this functions isn't
* required to perform sanity checks a second time.
*
- * For isochronous transfers where a payload is always transfered in a single
+ * For isochronous transfers where a payload is always transferred in a single
* URB, the three functions will be called in a row.
*
* To let the decoder process header data and update its internal state even
@@ -654,7 +658,7 @@ static void uvc_video_decode_bulk(struct urb *urb, struct uvc_streaming *stream,
buf);
} while (ret == -EAGAIN);
- /* If an error occured skip the rest of the payload. */
+ /* If an error occurred skip the rest of the payload. */
if (ret < 0 || buf == NULL) {
stream->bulk.skip_payload = 1;
} else {
@@ -817,7 +821,7 @@ static int uvc_alloc_urb_buffers(struct uvc_streaming *stream,
return stream->urb_size / psize;
/* Compute the number of packets. Bulk endpoints might transfer UVC
- * payloads accross multiple URBs.
+ * payloads across multiple URBs.
*/
npackets = DIV_ROUND_UP(size, psize);
if (npackets > UVC_MAX_PACKETS)