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(parent: fee906f) | patch
drm/nouveau/pmu: do not assume a PMU is present
authorAlexandre Courbot <acourbot@nvidia.com>
Thu, 3 Sep 2015 08:39:52 +0000 (17:39 +0900)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 19 Feb 2016 22:28:38 +0000 (14:28 -0800)
commit233ffe57007a91dd2f517ac60aa668979c404dbd
tree93330b257d8348be5c96e3ae3c0ada56be1576detree
parentfee906f035f0bd18ff12d84d58766c44a2ab0918commit | diff
drm/nouveau/pmu: do not assume a PMU is present

commit 579b7c58215329803ce184704463de09f0f310ac upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git