On Tue, May 17, 2016 at 11:52:10AM +0800, Chen-Yu Tsai wrote:
> Hi,
>
> On Mon, May 16, 2016 at 8:47 PM, Maxime Ripard
> <maxime.ripard@xxxxxxxxxxxxxxxxxx> wrote:
> > Our code currently defers our probe on any error, even if we were not
> > expecting to have one at all.
> >
> > Make sure we return -EPROBE_DEFER only when we were supposed to have a
> > panel, but it's not probed yet.
> >
> > Fixes: 29e57fab97fc ("drm: sun4i: Add RGB output")
> > Signed-off-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx>
> > ---
> > drivers/gpu/drm/sun4i/sun4i_tcon.c | 15 ++++++++-------
> > 1 file changed, 8 insertions(+), 7 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
> > index 9f19b0e08560..eed6a9e8d9a6 100644
> > --- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
> > +++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
> > @@ -429,7 +429,7 @@ static struct drm_panel *sun4i_tcon_find_panel(struct device_node *node)
> > return ERR_PTR(-EINVAL);
> > }
> >
> > - return of_drm_find_panel(remote);
> > + return of_drm_find_panel(remote) ?: ERR_PTR(-EPROBE_DEFER);
>
> There's also a typo in the DRM_DEBUG_DRIVER call a few lines up. Could you
> fix it as well?
Done, thanks!
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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