Hi Mauro, On Thu, Jun 08, 2017 at 03:00:22PM -0300, Mauro Carvalho Chehab wrote: > Em Wed, 7 Jun 2017 10:52:07 +0100 > Kieran Bingham <[email protected]> escreveu: > > > From: Kieran Bingham <[email protected]> > > > > Return NULL, if a null entity is parsed for it's v4l2_subdev > > > > Signed-off-by: Kieran Bingham <[email protected]> > > Could you please improve this patch description? > > I'm unsure if this is a bug fix, or some sort of feature... > > On what situations would a null entity be passed to this function?
I actually proposed this patch. This change is simply for convenience --- the caller doesn't need to make sure the subdev is non-NULL, possibly obtained from e.g. media_entity_remote_pad() which returns NULL all links to the pad are disabled. This is a recurring pattern, and making this change avoids an additional check. Having something along these lines in the patch description wouldn't hurt. -- Regards, Sakari Ailus e-mail: [email protected] XMPP: [email protected]
