Commit 579b7c58 authored Sep 03, 2015 by Alexandre Courbot Committed by Ben Skeggs Nov 03, 2015

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>

parent 04b8a4bd

drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);
		}