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[v2,1/1] scsi: ufs: Fix a possible use before initialization case

Message ID 1623220779-22030-1-git-send-email-cang@codeaurora.org
State New
Headers show
Series [v2,1/1] scsi: ufs: Fix a possible use before initialization case | expand

Commit Message

Can Guo June 9, 2021, 6:39 a.m. UTC 
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@intel.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
---
Change since V1:
- Use codeaurora mail in Signed-off-by tag.

 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

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);