drm/amdgpu: avoid dereferencing a NULL pointer

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Check if irq_src is NULL to avoid dereferencing a NULL pointer,
for MES ring is uneccessary to recieve an interrupt notification.

Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Jack Xiao 2019-06-05 16:30:13 +08:00 • committed by Alex Deucher

parent cdca797945

commit 55611b507f

1 changed files with 12 additions and 7 deletions

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19

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

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