[PATCH 3/3] amdgpu/dm: don't use after free.

Harry Wentland harry.wentland at amd.com
Tue Oct 3 15:17:34 UTC 2017


On 2017-10-03 12:27 AM, Dave Airlie wrote:
> From: Dave Airlie <airlied at redhat.com>
> 
> This dereference acrtc after freeing it.
> 
> Found by the kfree cocci script.
> 
> Signed-off-by: Dave Airlie <airlied at redhat.com>

Series is
Reviewed-by: Harry Wentland <harry.wentland at amd.com>

Harry

> ---
>  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 61ccddd..4f89731 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -3174,7 +3174,6 @@ int amdgpu_dm_crtc_init(struct amdgpu_display_manager *dm,
>  fail:
>  	kfree(acrtc);
>  	kfree(cursor_plane);
> -	acrtc->crtc_id = -1;
>  	return res;
>  }
>  
> 


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