[PATCH v3 1/1] scsi: ufs: Fix illegal address reading in upiu event trace
From: Jonathan Hsu <hidden>
Date: 2021-09-24 08:44:48
Also in:
linux-scsi
Subsystem:
scsi subsystem, the rest · Maintainers:
"James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds
Fix incorrect index for UTMRD reference in ufshcd_add_tm_upiu_trace().
Fixes: 4b42d557a8ad ("scsi: ufs: core: Fix wrong Task Tag used in task management request UPIUs")
Signed-off-by: Jonathan Hsu <redacted>
Cc: stable@vger.kernel.org
---
drivers/scsi/ufs/ufshcd.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 3841ab49f556..36aa27cdc2ab 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c@@ -319,8 +319,7 @@ static void ufshcd_add_query_upiu_trace(struct ufs_hba *hba, static void ufshcd_add_tm_upiu_trace(struct ufs_hba *hba, unsigned int tag, enum ufs_trace_str_t str_t) { - int off = (int)tag - hba->nutrs; - struct utp_task_req_desc *descp = &hba->utmrdl_base_addr[off]; + struct utp_task_req_desc *descp = &hba->utmrdl_base_addr[tag]; if (!trace_ufshcd_upiu_enabled()) return;
--
2.18.0