Unverified Commit 660b0ac1 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
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!4265 [sync] PR-4255: drm/amdgpu: Fix potential fence use-after-free v2 

Merge Pull Request from: @openeuler-sync-bot 
 

Origin pull request: 
https://gitee.com/openeuler/kernel/pulls/4255 
 
PR sync from: GUO Zihua <guozihua@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/VOH63IKM2FSSI5CULEGOZJNL75B7KN57/ 
 
https://gitee.com/src-openeuler/kernel/issues/I8YD58 
 
Link:https://gitee.com/openeuler/kernel/pulls/4265

 

Reviewed-by: default avatarLu Jialin <lujialin4@huawei.com>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parents 8902bc95 cc4b5e03

drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c

+3 −3
Original line number Diff line number Diff line
@@ -1517,15 +1517,15 @@ static int amdgpu_cs_wait_all_fences(struct amdgpu_device *adev, 
			continue;



		r = dma_fence_wait_timeout(fence, true, timeout);

		if (r > 0 && fence->error)

			r = fence->error;



		dma_fence_put(fence);

		if (r < 0)

			return r;



		if (r == 0)

			break;



		if (fence->error)

			return fence->error;

	}



	memset(wait, 0, sizeof(*wait));