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Commit 8652920d authored by Tao Zhou's avatar Tao Zhou Committed by Alex Deucher
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drm/amdgpu: add mutex lock for cper ring 


Avoid the confliction between read and write of ring buffer.

Signed-off-by: default avatarTao Zhou <tao.zhou1@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent b1118df1
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