Hi Gaosheng, On Fri, Jul 14, 2023 at 09:48:20AM +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. > > Fixes: 502932a03fce ("drm/komeda: Add the initial scaler support for CORE") > Signed-off-by: Gaosheng Cui <cuigaosheng1@xxxxxxxxxx> > Reviewed-by: Liviu Dudau <liviu.dudau@xxxxxxx> > --- > 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)) If you're going to update the other patches to use IS_ERR_OR_NULL() please do so here too. You can keep my R-b for that change. Best regards, Liviu > 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)_/¯