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V4L/DVB (10199): uvcvideo: Fix GET_DEF failure detection.

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Commit 44f0079ec7 erroneously considers all
GET_DEF requests as unsuccessful. Fix this by checking the request return
value.

Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Laurent Pinchart 2009-01-03 20:08:26 -03:00 committed by Mauro Carvalho Chehab
parent fba4578ee9
commit 51cac8ada5
1 changed files with 1 additions and 1 deletions
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2
drivers/media/video/uvc/uvc_video.c
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@ -114,7 +114,7 @@ static int uvc_get_video_ctrl(struct uvc_video_device *video,
ctrl->wCompQuality = le16_to_cpup((__le16 *)data);
ret = 0;
goto out;
} else if (query == GET_DEF && probe == 1) {
} else if (query == GET_DEF && probe == 1 && ret != size) {
/* Many cameras don't support the GET_DEF request on their
* video probe control. Warn once and return, the caller will
* fall back to GET_CUR.