Commit d10285a2 authored by Karol Herbst's avatar Karol Herbst Committed by Dave Airlie

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

other drivers seems to do something similar
Signed-off-by: default avatarKarol 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: default avatarDave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201006220528.13925-2-kherbst@redhat.com
parent c3e0276c
...@@ -176,6 +176,8 @@ void ...@@ -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;
......
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