* [PATCH] gpu: drm: nouveau: add null check before pointer dereference
@ 2017-05-22 19:12 Gustavo A. R. Silva
2017-05-22 22:24 ` Ben Skeggs
0 siblings, 1 reply; 2+ messages in thread
From: Gustavo A. R. Silva @ 2017-05-22 19:12 UTC (permalink / raw)
To: Ben Skeggs, David Airlie
Cc: dri-devel, nouveau, linux-kernel, Gustavo A. R. Silva
Add null check before dereferencing pointer asyc
Addresses-Coverity-ID: 1397932
Signed-off-by: Gustavo A. R. Silva <garsilva@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;
}
--
2.5.0
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH] gpu: drm: nouveau: add null check before pointer dereference
2017-05-22 19:12 [PATCH] gpu: drm: nouveau: add null check before pointer dereference Gustavo A. R. Silva
@ 2017-05-22 22:24 ` Ben Skeggs
0 siblings, 0 replies; 2+ messages in thread
From: Ben Skeggs @ 2017-05-22 22:24 UTC (permalink / raw)
To: Gustavo A. R. Silva, David Airlie; +Cc: dri-devel, nouveau, linux-kernel
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@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;
> }
>
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2017-05-22 22:24 ` Ben Skeggs
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