* [PATCH] drm/amdgpu: Fix null pointer issue in amdgpu_cs_wait_any_fence
@ 2017-11-09 7:59 Emily Deng
[not found] ` <1510214382-6807-1-git-send-email-Emily.Deng-5C7GfCeVMHo@public.gmane.org>
0 siblings, 1 reply; 2+ messages in thread
From: Emily Deng @ 2017-11-09 7:59 UTC (permalink / raw)
To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW; +Cc: Emily Deng
The array[first] may be null when the fence has already been signaled.
BUG: SWDEV-136239
Signed-off-by: Emily Deng <Emily.Deng@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 354c874..182df08 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1502,8 +1502,11 @@ static int amdgpu_cs_wait_any_fence(struct amdgpu_device *adev,
memset(wait, 0, sizeof(*wait));
wait->out.status = (r > 0);
wait->out.first_signaled = first;
- /* set return value 0 to indicate success */
- r = array[first]->error;
+
+ if (array[first])
+ r = array[first]->error;
+ else
+ r = 0;
err_free_fence_array:
for (i = 0; i < fence_count; i++)
--
1.9.1
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^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] drm/amdgpu: Fix null pointer issue in amdgpu_cs_wait_any_fence
[not found] ` <1510214382-6807-1-git-send-email-Emily.Deng-5C7GfCeVMHo@public.gmane.org>
@ 2017-11-09 9:05 ` Christian König
0 siblings, 0 replies; 2+ messages in thread
From: Christian König @ 2017-11-09 9:05 UTC (permalink / raw)
To: Emily Deng, amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
Am 09.11.2017 um 08:59 schrieb Emily Deng:
> The array[first] may be null when the fence has already been signaled.
>
> BUG: SWDEV-136239
>
> Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> index 354c874..182df08 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> @@ -1502,8 +1502,11 @@ static int amdgpu_cs_wait_any_fence(struct amdgpu_device *adev,
> memset(wait, 0, sizeof(*wait));
> wait->out.status = (r > 0);
> wait->out.first_signaled = first;
> - /* set return value 0 to indicate success */
> - r = array[first]->error;
> +
> + if (array[first])
> + r = array[first]->error;
> + else
> + r = 0;
>
> err_free_fence_array:
> for (i = 0; i < fence_count; i++)
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amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 2+ messages in thread
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2017-11-09 7:59 [PATCH] drm/amdgpu: Fix null pointer issue in amdgpu_cs_wait_any_fence Emily Deng
[not found] ` <1510214382-6807-1-git-send-email-Emily.Deng-5C7GfCeVMHo@public.gmane.org>
2017-11-09 9:05 ` Christian König
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