Am 02.11.20 um 04:14 schrieb Bernard Zhao:
In function amdgpu_register_gpu_instance, there is no need to
protect DRM_ERROR in mutex mgpu_info.mutex.
This change is to make the code to run a bit fast.
NAK, performance for an error path in module load is pretty much irrelevant.
This just looks like a random unnecessary code change to me.
Regards,
Christian.
Signed-off-by: Bernard Zhao <bernard@xxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index efda38349a03..cc61b0a5b8d1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -104,8 +104,8 @@ void amdgpu_register_gpu_instance(struct amdgpu_device *adev)
mutex_lock(&mgpu_info.mutex);
if (mgpu_info.num_gpu >= MAX_GPU_INSTANCE) {
- DRM_ERROR("Cannot register more gpu instance\n");
mutex_unlock(&mgpu_info.mutex);
+ DRM_ERROR("Cannot register more gpu instance\n");
return;
}
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