1 files changed, 11 insertions, 6 deletions

diff --git a/drivers/media/video/uvc/uvc_video.c b/drivers/media/video/uvc/uvc_video.c
index 6ce974d7362f..01b633c73480 100644
--- a/drivers/media/video/uvc/uvc_video.c
+++ b/drivers/media/video/uvc/uvc_video.c
@@ -65,7 +65,8 @@ static void uvc_fixup_video_ctrl(struct uvc_video_device *video,
         struct uvc_streaming_control *ctrl)
 {
         struct uvc_format *format;
-        struct uvc_frame *frame;
+        struct uvc_frame *frame = NULL;
+        unsigned int i;
 
         if (ctrl->bFormatIndex <= 0 ||
             ctrl->bFormatIndex > video->streaming->nformats)
@@ -73,11 +74,15 @@ static void uvc_fixup_video_ctrl(struct uvc_video_device *video,
 
         format = &video->streaming->format[ctrl->bFormatIndex - 1];
 
-        if (ctrl->bFrameIndex <= 0 ||
-            ctrl->bFrameIndex > format->nframes)
-                return;
+        for (i = 0; i < format->nframes; ++i) {
+                if (format->frame[i].bFrameIndex == ctrl->bFrameIndex) {
+                        frame = &format->frame[i];
+                        break;
+                }
+        }
 
-        frame = &format->frame[ctrl->bFrameIndex - 1];
+        if (frame == NULL)
+                return;
 
         if (!(format->flags & UVC_FMT_FLAG_COMPRESSED) ||
              (ctrl->dwMaxVideoFrameSize == 0 &&
@@ -1089,7 +1094,7 @@ int uvc_video_init(struct uvc_video_device *video)
         /* Zero bFrameIndex might be correct. Stream-based formats (including
          * MPEG-2 TS and DV) do not support frames but have a dummy frame
          * descriptor with bFrameIndex set to zero. If the default frame
-         * descriptor is not found, use the first avalable frame.
+         * descriptor is not found, use the first available frame.
          */
         for (i = format->nframes; i > 0; --i) {
                 frame = &format->frame[i-1];