On Thu, Jul 13, 2023 at 05:51:34PM +0800, cuigaosheng wrote:
> Thanks for taking time to review this patch.
>
> Maybe we can submit another separate patch to fix ERR_CAST(st), because I'm not
> sure which commit should be used as a fixes-tag.
>
> Also, Maybe we should fix ERR_CAST(st) in komeda_pipeline_get_state_and_set_crtc()
> and komeda_component_get_state_and_set_user(), please make another separate patch.
Yeah, you're right, there are other places where this needs to be fixed.
I will add this to my list of ToDos.
Best regards,
Liviu
>
> Let me know if there's anything I can do, thanks for your work again!
>
> Gaosheng,
>
> On 2023/7/13 16:54, Liviu Dudau wrote:
> > Hello,
> >
> > On Thu, Jul 13, 2023 at 10:05:56AM +0800, Gaosheng Cui wrote:
> > > The komeda_pipeline_get_state() returns an ERR_PTR() on failure, we should
> > > use IS_ERR() to check the return value.
> > While reviewing the change I've realised that komeda_pipeline_get_state_and_set_crtc()
> > is also mishandling the return value from komeda_pipeline_get_state(). If IS_ERR(st) is
> > true it should use return ERR_CAST(st), following the same pattern as komeda_pipeline_get_state().
> >
> > If you don't want to update this patch I can send a separate patch. Otherwise,
> > the change looks good to me.
> >
> > Reviewed-by: Liviu Dudau <liviu.dudau@xxxxxxx>
> >
> > Best regards,
> > Liviu
> >
> >
> > > Fixes: 502932a03fce ("drm/komeda: Add the initial scaler support for CORE")
> > > Signed-off-by: Gaosheng Cui <cuigaosheng1@xxxxxxxxxx>
> > > ---
> > > drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c | 2 +-
> > > 1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c
> > > index 3276a3e82c62..e9c92439398d 100644
> > > --- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c
> > > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c
> > > @@ -259,7 +259,7 @@ komeda_component_get_avail_scaler(struct komeda_component *c,
> > > u32 avail_scalers;
> > > pipe_st = komeda_pipeline_get_state(c->pipeline, state);
> > > - if (!pipe_st)
> > > + if (IS_ERR(pipe_st))
> > > return NULL;
> > > avail_scalers = (pipe_st->active_comps & KOMEDA_PIPELINE_SCALERS) ^
> > > --
> > > 2.25.1
> > >
--
====================
| I would like to |
| fix the world, |
| but they're not |
| giving me the |
\ source code! /
---------------
¯\_(ツ)_/¯
