Re: [PATCH] gpu: drm: nouveau: add null check before pointer dereference
From: Ben Skeggs
Date: Mon May 22 2017 - 18:24:35 EST
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 <garsilva@xxxxxxxxxxxxxx>
---
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;
}