[PATCH] scsi: ufs: Fix a possible use before initialization case

[Can Guo]

In ufshcd_exec_dev_cmd(), if error happens before lrpb is initialized,
then we should bail out instead of letting trace record the error.

Fixes: a45f937110fa6 ("scsi: ufs: Optimize host lock on transfer requests send/compl paths")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Can Guo <cang@xxxxxxxxxxxxxxxx>

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index fe1b5f4..0d54ab7 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2972,7 +2972,7 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba,
 
 	if (unlikely(test_bit(tag, &hba->outstanding_reqs))) {
 		err = -EBUSY;
-		goto out;
+		goto out_put_tag;
 	}
 
 	init_completion(&wait);
-- 
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