diff options
| author | Sean Paul <seanpaul@chromium.org> | 2019-05-15 19:00:52 +0200 |
|---|---|---|
| committer | Sean Paul <seanpaul@chromium.org> | 2019-05-15 22:03:08 +0200 |
| commit | 2b117451277140b782f3e4e56a4296c0a165e7ae (patch) | |
| tree | a39bf61b41f63724e6c228bb7d9f44f788b4ffca /drivers/gpu/drm/msm | |
| parent | drm/msm/dpu: Remove duplicate header (diff) | |
| download | linux-2b117451277140b782f3e4e56a4296c0a165e7ae.tar.xz linux-2b117451277140b782f3e4e56a4296c0a165e7ae.zip | |
drm/msm: Upgrade gxpd checks to IS_ERR_OR_NULL
dev_pm_domain_attach_by_name() can return NULL, so we should check for
that case when we're about to dereference gxpd.
Fixes: 9325d4266afd ("drm/msm/gpu: Attach to the GPU GX power domain")
Cc: Jordan Crouse <jcrouse@codeaurora.org>
Cc: Rob Clark <robdclark@chromium.org>
Reviewed-by: Jordan Crouse <jcrouse@codeauorora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190515170104.155525-1-sean@poorly.run
Diffstat (limited to 'drivers/gpu/drm/msm')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c index 9155dafae2a9..38e2cfa9cec7 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c @@ -747,7 +747,7 @@ int a6xx_gmu_resume(struct a6xx_gpu *a6xx_gpu) * will make sure that the refcounting is correct in case we need to * bring down the GX after a GMU failure */ - if (!IS_ERR(gmu->gxpd)) + if (!IS_ERR_OR_NULL(gmu->gxpd)) pm_runtime_get(gmu->gxpd); out: @@ -863,7 +863,7 @@ int a6xx_gmu_stop(struct a6xx_gpu *a6xx_gpu) * domain. Usually the GMU does this but only if the shutdown sequence * was successful */ - if (!IS_ERR(gmu->gxpd)) + if (!IS_ERR_OR_NULL(gmu->gxpd)) pm_runtime_put_sync(gmu->gxpd); clk_bulk_disable_unprepare(gmu->nr_clocks, gmu->clocks); @@ -1234,7 +1234,7 @@ void a6xx_gmu_remove(struct a6xx_gpu *a6xx_gpu) pm_runtime_disable(gmu->dev); - if (!IS_ERR(gmu->gxpd)) { + if (!IS_ERR_OR_NULL(gmu->gxpd)) { pm_runtime_disable(gmu->gxpd); dev_pm_domain_detach(gmu->gxpd, false); } |