Hi Hans, On Tue, Jun 23, 2015 at 11:20:23AM +0200, Hans Verkuil wrote: > If the vdev pointer == NULL, then just return. > > This makes it easier for subdev drivers to use this function without having to > check if the sd->devnode pointer is NULL or not.
Do you have an example of when this would be useful? Isn't it a rather fundamental question to a driver whether or not it exposes a device node, i.e. why would a driver use v4l2_event_queue() in the first place if it does not expose a device node, and so the event interface? > > Signed-off-by: Hans Verkuil <hans.verk...@cisco.com> > > diff --git a/drivers/media/v4l2-core/v4l2-event.c > b/drivers/media/v4l2-core/v4l2-event.c > index 8761aab..8d3171c 100644 > --- a/drivers/media/v4l2-core/v4l2-event.c > +++ b/drivers/media/v4l2-core/v4l2-event.c > @@ -172,6 +172,9 @@ void v4l2_event_queue(struct video_device *vdev, const > struct v4l2_event *ev) > unsigned long flags; > struct timespec timestamp; > > + if (vdev == NULL) > + return; > + > ktime_get_ts(×tamp); > > spin_lock_irqsave(&vdev->fh_lock, flags); -- Regards, Sakari Ailus e-mail: sakari.ai...@iki.fi XMPP: sai...@retiisi.org.uk -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
