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authorEmily Deng <Emily.Deng@amd.com>2017-11-09 17:18:18 +0800
committerAlex Deucher <alexander.deucher@amd.com>2017-11-09 18:11:47 -0500
commitcdadab89f8cc37dd6101e2bbab50037d72e0e1d0 (patch)
treea1c24f194732f66c9bb84f62d14b144bfe997b21 /drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
parentab6613b7eaefe85dadfc86025e901c55d71c0379 (diff)
downloadtalos-obmc-linux-cdadab89f8cc37dd6101e2bbab50037d72e0e1d0.tar.gz
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drm/amdgpu: Fix null pointer issue in amdgpu_cs_wait_any_fence
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> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c7
1 files 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 f7fceb63413c..146e05f21d35 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1497,8 +1497,11 @@ out:
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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