[PATCH] panel: rocktech: no need to check return value of debugfs_create functions

[Daniel Vetter]

On Thu, Jun 13, 2019 at 02:16:16PM +0200, Guido Günther wrote:
> Hi,
> On Thu, Jun 13, 2019 at 01:57:17PM +0200, Greg Kroah-Hartman wrote:
> > When calling debugfs functions, there is no need to ever check the
> > return value.  The function can work or not, but the code logic should
> > never do something different based on this.
> > 
> > Cc: "Guido Günther" <agx at sigxcpu.org>
> > Cc: Thierry Reding <thierry.reding at gmail.com>
> > Cc: David Airlie <airlied at linux.ie>
> > Cc: Daniel Vetter <daniel at ffwll.ch>
> > Cc: dri-devel at lists.freedesktop.org
> > Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
> > ---
> >  drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c | 14 +++-----------
> >  1 file changed, 3 insertions(+), 11 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c b/drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c
> > index d88ea8da2ec2..6dcb692c4701 100644
> > --- a/drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c
> > +++ b/drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c
> > @@ -257,20 +257,12 @@ static int allpixelson_set(void *data, u64 val)
> >  DEFINE_SIMPLE_ATTRIBUTE(allpixelson_fops, NULL,
> >  			allpixelson_set, "%llu\n");
> >  
> > -static int jh057n_debugfs_init(struct jh057n *ctx)
> > +static void jh057n_debugfs_init(struct jh057n *ctx)
> >  {
> > -	struct dentry *f;
> > -
> >  	ctx->debugfs = debugfs_create_dir(DRV_NAME, NULL);
> > -	if (!ctx->debugfs)
> > -		return -ENOMEM;
> >  
> > -	f = debugfs_create_file("allpixelson", 0600,
> > -				ctx->debugfs, ctx, &allpixelson_fops);
> > -	if (!f)
> > -		return -ENOMEM;
> > -
> > -	return 0;
> > +	debugfs_create_file("allpixelson", 0600, ctx->debugfs, ctx,
> > +			    &allpixelson_fops);
> >  }
> >  
> >  static void jh057n_debugfs_remove(struct jh057n *ctx)
> 
> Reviewed-by: Guido Günther <agx at sigxcpu.org>

Applied to drm-misc-next, thanks.

For the others I'll assume drivers maintainers will pick them up. If not
pls ping/resend and I'll stuff all the remaining ones into drm-misc-next.

Thanks, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch