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 <[email protected]>
---
 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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