Re: [PATCH] gpu: drm: nouveau: add null check before pointer dereference

[Ben Skeggs]

On 05/23/2017 05:12 AM, Gustavo A. R. Silva wrote:

Add null check before dereferencing pointer asyc

I've taken the patch into my tree, thanks!

Ben.

Addresses-Coverity-ID: 1397932
Signed-off-by: Gustavo A. R. Silva <garsi...@embeddedor.com>
---
  drivers/gpu/drm/nouveau/nv50_display.c | 3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nv50_display.c 
b/drivers/gpu/drm/nouveau/nv50_display.c
index a766324..052a60a 100644
--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -2107,7 +2107,8 @@ nv50_head_atomic_check(struct drm_crtc *crtc, struct 
drm_crtc_state *state)
                                        asyc->set.dither = true;
                        }
                } else {
-                       asyc->set.mask = ~0;
+                       if (asyc)
+                               asyc->set.mask = ~0;
                        asyh->set.mask = ~0;
                }