[PATCH] drm/komeda: check for error-valued pointer
Amjad Ouled-Ameur
amjad.ouled-ameur at arm.com
Mon Jun 10 10:20:56 UTC 2024
komeda_pipeline_get_state() may return an error-valued pointer, thus
check the pointer for negative or null value before dereferencing.
Signed-off-by: Amjad Ouled-Ameur <amjad.ouled-ameur at arm.com>
---
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 f3e744172673..f4e76b46ca32 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_OR_NULL(pipe_st))
return NULL;
avail_scalers = (pipe_st->active_comps & KOMEDA_PIPELINE_SCALERS) ^
--
2.25.1
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