diff options
| author | Alexandre Courbot <acourbot@nvidia.com> | 2015-09-03 17:39:52 +0900 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2015-11-03 14:57:27 +1000 |
| commit | 1c4b0d12f487a874928ad6efd73a8939c6d23be4 (patch) | |
| tree | 00e3d53c7972cd9a7901fcaafcb245c34bd732b0 /drm/nouveau/nvkm | |
| parent | d55c3200d876032f6149c83045eea96c05472dc9 (diff) | |
| download | nouveau-1c4b0d12f487a874928ad6efd73a8939c6d23be4.tar.gz | |
pmu: do not assume a PMU is present
Some devices may not have a PMU. Avoid a NULL pointer dereference in
such cases by checking whether the pointer given to nvkm_pmu_pgob() is
valid.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drm/nouveau/nvkm')
| -rw-r--r-- | drm/nouveau/nvkm/subdev/pmu/base.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drm/nouveau/nvkm/subdev/pmu/base.c b/drm/nouveau/nvkm/subdev/pmu/base.c index 27a79c0c3..d95eb8659 100644 --- a/drm/nouveau/nvkm/subdev/pmu/base.c +++ b/drm/nouveau/nvkm/subdev/pmu/base.c @@ -28,7 +28,7 @@ void nvkm_pmu_pgob(struct nvkm_pmu *pmu, bool enable) { - if (pmu->func->pgob) + if (pmu && pmu->func->pgob) pmu->func->pgob(pmu, enable); } |