RDMA/mlx5: Fix mutex unlocking on error flow for steering anchor crea…

…tion

The mutex was not unlocked on some of the error flows.
Moved the unlock location to include all the error flow scenarios.

Fixes: e1f4a52 ("RDMA/mlx5: Create an indirect flow table for steering anchor")
Reviewed-by: Mark Bloch <[email protected]>
Signed-off-by: Hamdan Igbaria <[email protected]>
Link: https://lore.kernel.org/r/1244a69d783da997c0af0b827c622eb00495492e.1695203958.git.leonro@nvidia.com
Signed-off-by: Leon Romanovsky <[email protected]>

Orabug: 36385281

(cherry picked from commit 2fad8f0)
cherry-pick-repo=kernel/git/torvalds/linux.git
unmodified-from-upstream: 2fad8f0

Signed-off-by: Mikhael Goikhman <[email protected]>
Signed-off-by: Qing Huang <[email protected]>
Reviewed-by: Devesh Sharma <[email protected]>
Signed-off-by: Brian Maly <[email protected]>

drivers/infiniband/hw/mlx5/fs.c

@@ -2530,8 +2530,8 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_STEERING_ANCHOR_CREATE)(
 	mlx5_steering_anchor_destroy_res(ft_prio);
 put_flow_table:
 	put_flow_table(dev, ft_prio, true);
-	mutex_unlock(&dev->flow_db->lock);
 free_obj:
+	mutex_unlock(&dev->flow_db->lock);
 	kfree(obj);
 
 	return err;