diff options
| author | Akhil P Oommen <quic_akhilpo@quicinc.com> | 2022-09-28 10:19:00 +0300 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2022-09-30 19:01:41 +0300 |
| commit | 76efc2453d0e8e5d6692ef69981b183ad674edea (patch) | |
| tree | 10185204e51483e8b1804b60f2e352bcdea8df64 /drivers/gpu/drm/msm/msm_gpu.h | |
| parent | ec8f1813bf8d0737898f99a8c1c69df0cde0d7dd (diff) | |
| download | linux-76efc2453d0e8e5d6692ef69981b183ad674edea.tar.xz | |
drm/msm/gpu: Fix crash during system suspend after unbind
In adreno_unbind, we should clean up gpu device's drvdata to avoid
accessing a stale pointer during system suspend. Also, check for NULL
ptr in both system suspend/resume callbacks.
Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/505075/
Link: https://lore.kernel.org/r/20220928124830.2.I5ee0ac073ccdeb81961e5ec0cce5f741a7207a71@changeid
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gpu.h')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gpu.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h index ff911e7305ce..58a72e6b1400 100644 --- a/drivers/gpu/drm/msm/msm_gpu.h +++ b/drivers/gpu/drm/msm/msm_gpu.h @@ -280,6 +280,10 @@ struct msm_gpu { static inline struct msm_gpu *dev_to_gpu(struct device *dev) { struct adreno_smmu_priv *adreno_smmu = dev_get_drvdata(dev); + + if (!adreno_smmu) + return NULL; + return container_of(adreno_smmu, struct msm_gpu, adreno_smmu); } |