Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

drm/nouveau/mem: guard against NULL pointer access in mem_del

Browse source 
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>
This commit is contained in:
Karol Herbst 2020-10-07 00:05:28 +02:00 committed by Greg Kroah-Hartman
parent c37528577a
commit 92f3373c99
1 changed files with 2 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/gpu/drm/nouveau/nouveau_mem.c
View file

@ -176,6 +176,8 @@ void
nouveau_mem_del(struct ttm_mem_reg *reg) nouveau_mem_del(struct ttm_mem_reg *reg)
{ {
struct nouveau_mem *mem = nouveau_mem(reg); struct nouveau_mem *mem = nouveau_mem(reg);
if (!mem)
return;
nouveau_mem_fini(mem); nouveau_mem_fini(mem);
kfree(reg->mm_node); kfree(reg->mm_node);
reg->mm_node = NULL; reg->mm_node = NULL;