[PATCH next] drm/amdgpu: Fix a double lock bug

Dan Carpenter dan.carpenter at linaro.org
Thu Oct 17 19:40:18 UTC 2024


This was supposed to be an unlock instead of a lock.  The original
code will lead to a deadlock.

Fixes: ee52489d1210 ("drm/amdgpu: Place NPS mode request on unload")
Signed-off-by: Dan Carpenter <dan.carpenter at linaro.org>
---
>From static analysis, not testing.
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
index fcdbcff57632..3be07bcfd117 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
@@ -1605,7 +1605,7 @@ int amdgpu_xgmi_request_nps_change(struct amdgpu_device *adev,
 					     gmc.xgmi.head)
 		adev->gmc.gmc_funcs->request_mem_partition_mode(tmp_adev,
 								cur_nps_mode);
-	mutex_lock(&hive->hive_lock);
+	mutex_unlock(&hive->hive_lock);
 
 	return r;
 }
-- 
2.45.2



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