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| author | Karol Herbst <kherbst@redhat.com> | 2020-10-07 00:05:28 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2020-10-07 15:33:09 +1000 |
| commit | d10285a25e29f13353bbf7760be8980048c1ef2f (patch) | |
| tree | 15e80ff3046207c1e31076a0c4331d863b3c904c /drivers | |
| parent | c3e0276c31ca8c7b8615da890727481260d4676f (diff) | |
| download | linux-d10285a25e29f13353bbf7760be8980048c1ef2f.tar.bz2 | |
drm/nouveau/mem: guard against NULL pointer access in mem_del
other drivers seems to do something similar
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Cc: dri-devel <dri-devel@lists.freedesktop.org>
Cc: Dave Airlie <airlied@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201006220528.13925-2-kherbst@redhat.com
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_mem.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c index b1bb542d3115..e5fae57fffbd 100644 --- a/drivers/gpu/drm/nouveau/nouveau_mem.c +++ b/drivers/gpu/drm/nouveau/nouveau_mem.c @@ -176,6 +176,8 @@ void nouveau_mem_del(struct ttm_mem_reg *reg) { struct nouveau_mem *mem = nouveau_mem(reg); + if (!mem) + return; nouveau_mem_fini(mem); kfree(reg->mm_node); reg->mm_node = NULL; |