Hi Hans,
Thanks for the comment.
On Sunday 21 November 2010 22:23:38 Hans Verkuil wrote:
> On Sunday, November 21, 2010 21:32:52 Laurent Pinchart wrote:
> > The stream mutex protects access to the struct uvc_streaming ctrl,
> > cur_format and cur_frame fields as well as to the hardware probe
> > control. Lock it appropriately.
> >
> > Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> > ---
> >
> > drivers/media/video/uvc/uvc_v4l2.c | 76
> > +++++++++++++++++++++++++---------- drivers/media/video/uvc/uvc_video.c
> > | 3 -
> > drivers/media/video/uvc/uvcvideo.h | 4 +-
> > 3 files changed, 57 insertions(+), 26 deletions(-)
> >
> > diff --git a/drivers/media/video/uvc/uvc_v4l2.c
> > b/drivers/media/video/uvc/uvc_v4l2.c index 07dd235..b4615e2 100644
> > --- a/drivers/media/video/uvc/uvc_v4l2.c
> > +++ b/drivers/media/video/uvc/uvc_v4l2.c
[snip]
> > @@ -255,14 +257,21 @@ done:
> > static int uvc_v4l2_get_format(struct uvc_streaming *stream,
> >
> > struct v4l2_format *fmt)
> >
> > {
> >
> > - struct uvc_format *format = stream->cur_format;
> > - struct uvc_frame *frame = stream->cur_frame;
> > + struct uvc_format *format;
> > + struct uvc_frame *frame;
> > + int ret = 0;
> >
> > if (fmt->type != stream->type)
> >
> > return -EINVAL;
> >
> > - if (format == NULL || frame == NULL)
> > - return -EINVAL;
> > + mutex_lock(&stream->mutex);
> > + format = stream->cur_format;
> > + frame = stream->cur_frame;
> > +
> > + if (format == NULL || frame == NULL) {
> > + ret = -EINVAL;
>
> ret is set...
>
> > + goto done;
> > + }
> >
> > fmt->fmt.pix.pixelformat = format->fcc;
> > fmt->fmt.pix.width = frame->wWidth;
> >
> > @@ -273,6 +282,8 @@ static int uvc_v4l2_get_format(struct uvc_streaming
> > *stream,
> >
> > fmt->fmt.pix.colorspace = format->colorspace;
> > fmt->fmt.pix.priv = 0;
> >
> > +done:
> > + mutex_unlock(&stream->mutex);
> >
> > return 0;
>
> But not returned?!
My bad. I'll fix it. Thanks.
--
Regards,
Laurent Pinchart
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