blob: 6ad5796e8db5edf9586f1ca02f53b8a78353e257 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
From 65fbb05cbbf9ef7f531712634c3e914b54171707 Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Thu, 3 Sep 2015 17:39:52 +0900
Subject: [PATCH] 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>
---
drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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);
}
--
2.5.0
|
