[PATCH] drm/amdgpu: Fix missing unlocking in an error path in amdgpu_userq_create()

[Christophe JAILLET]

If kasprintf() fails, some mutex still need to be released to avoid locking
issue, as already done in all other error handling path.

Fixes: c03ea34cbf88 ("drm/amdgpu: add support of debugfs for mqd information")
Signed-off-by: Christophe JAILLET <christophe.jail...@wanadoo.fr>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
index 513bbc543f40..bce97318965c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
@@ -520,8 +520,10 @@ amdgpu_userq_create(struct drm_file *filp, union 
drm_amdgpu_userq *args)
        }
 
        queue_name = kasprintf(GFP_KERNEL, "queue-%d", qid);
-       if (!queue_name)
-               return -ENOMEM;
+       if (!queue_name) {
+               r = -ENOMEM;
+               goto unlock;
+       }
 
        /* Queue dentry per client to hold MQD information   */
        queue->debugfs_queue = debugfs_create_dir(queue_name, 
filp->debugfs_client);
-- 
2.50.0