[PATCH] drm/amd/powerplay: Fix double unlock bug in smu_sys_set_pp_table()

[Dan Carpenter <dan.carpenter@oracle.com>]

We already unlocked a few lines earlier so this code unlocks twice on
the success path.

Fixes: 5809d7420f97 ("drm/amd/powerplay: implement sysfs of pp_table for smu11 (v2)")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
I'm not sure what this bug looks like at runtime, but it's slightly
weird that no one noticed.  This is from static analysis and I haven't
tested it myself.

 drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index 00b7c885772b..7e8c74da6a74 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -187,6 +187,8 @@ int smu_sys_set_pp_table(struct smu_context *smu,  void *buf, size_t size)
 	if (ret)
 		pr_info("smu reset failed, ret = %d\n", ret);
 
+	return ret;
+
 failed:
 	mutex_unlock(&smu->mutex);
 	return ret;
-- 
2.17.1