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| author | Amjad Ouled-Ameur <amjad.ouled-ameur@arm.com> | 2024-06-10 13:20:56 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-21 15:38:33 +0300 |
| commit | 9460961d82134ceda7377b77a3e3e3531b625dfe (patch) | |
| tree | 475ebd22d5868264492ffcfd25ff6965a6023c93 /drivers/gpu/drm/arm | |
| parent | f100031fd6a570e14312c283202db955cb5f56d1 (diff) | |
| download | linux-9460961d82134ceda7377b77a3e3e3531b625dfe.tar.xz | |
drm/komeda: check for error-valued pointer
[ Upstream commit b880018edd3a577e50366338194dee9b899947e0 ]
komeda_pipeline_get_state() may return an error-valued pointer, thus
check the pointer for negative or null value before dereferencing.
Fixes: 502932a03fce ("drm/komeda: Add the initial scaler support for CORE")
Signed-off-by: Amjad Ouled-Ameur <amjad.ouled-ameur@arm.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240610102056.40406-1-amjad.ouled-ameur@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/arm')
| -rw-r--r-- | drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c | 2 |
1 files changed, 1 insertions, 1 deletions
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) ^ |