diff options
Diffstat (limited to 'drivers/media/video/uvc/uvc_video.c')
| -rw-r--r-- | drivers/media/video/uvc/uvc_video.c | 22 |
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 5673d673504..fc766b9f24c 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) |