diff options
| author | Alexandre Courbot <acourbot@nvidia.com> | 2015-09-03 11:39:52 +0300 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2015-11-03 08:02:18 +0300 |
| commit | 579b7c58215329803ce184704463de09f0f310ac (patch) | |
| tree | 0ee81f66fad2db795dd124201aca12a84e335c22 /drivers/gpu/drm/nouveau | |
| parent | 04b8a4bd8e01e25b9fa9fa7b1c957a7346ae83c1 (diff) | |
| download | linux-579b7c58215329803ce184704463de09f0f310ac.tar.xz | |
drm/nouveau/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 'drivers/gpu/drm/nouveau')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c index 27a79c0c3888..d95eb8659d1b 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c +++ b/drivers/gpu/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); } |