linux-kernel - Re: [RFC 07/13] v4l2: device_register_subdev

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Date:   Tue, 14 Feb 2017 23:29:13 +0100
From:   Pavel Machek <pavel@....cz>
To:     Sakari Ailus <sakari.ailus@....fi>
Cc:     sre@...nel.org, pali.rohar@...il.com, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org, laurent.pinchart@...asonboard.com,
        mchehab@...nel.org, ivo.g.dimitrov.75@...il.com
Subject: Re: [RFC 07/13] v4l2: device_register_subdev_nodes: allow calling
 multiple times

On Wed 2017-02-15 00:02:57, Sakari Ailus wrote:
> Hi Pavel and Sebastian,
> 
> On Tue, Feb 14, 2017 at 02:40:00PM +0100, Pavel Machek wrote:
> > From: Sebastian Reichel <sre@...nel.org>
> > 
> > Without this, exposure / gain controls do not work in the camera application.
> 
> :-)
> 
> > 
> > Signed-off-by: Sebastian Reichel <sre@...nel.org>
> > Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>
> > Signed-off-by: Pavel Machek <pavel@....cz>
> > ---
> >  drivers/media/v4l2-core/v4l2-device.c | 3 +++
> >  1 file changed, 3 insertions(+)
> > 
> > diff --git a/drivers/media/v4l2-core/v4l2-device.c b/drivers/media/v4l2-core/v4l2-device.c
> > index f364cc1..b3afbe8 100644
> > --- a/drivers/media/v4l2-core/v4l2-device.c
> > +++ b/drivers/media/v4l2-core/v4l2-device.c
> > @@ -235,6 +235,9 @@ int v4l2_device_register_subdev_nodes(struct v4l2_device *v4l2_dev)
> >  		if (!(sd->flags & V4L2_SUBDEV_FL_HAS_DEVNODE))
> >  			continue;
> >  
> > +		if(sd->devnode)
> > +			continue;
> 
> This has been recognised as a problem but you're the first to submit a patch
> I believe. Please add an appropriate description. :-)

Ugh. Will try :-).

> s/if\(/if (/
> 
> I think this one should go in before the rest.

Easy enough, and I'll move it to the first in the series.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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