diff options
| author | Karol Herbst <kherbst@redhat.com> | 2020-10-07 00:05:28 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-10-14 10:31:21 +0200 |
| commit | 92f3373c99093e258cebe4cff4330662d19a3f4c (patch) | |
| tree | 0d1339c267a76c494e3a4dbf236688b5230f242f /drivers/gpu | |
| parent | c37528577ade675fd4d597b714395e74798797c2 (diff) | |
drm/nouveau/mem: guard against NULL pointer access in mem_del
commit d10285a25e29f13353bbf7760be8980048c1ef2f upstream.
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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu')
| -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 c002f8968507..9682f30ab6f6 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; |