linux-kernel - [PATCH 7/9] scsi: bnx2fc: Add missing annotation for bnx2fc_abts

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Date:   Sat, 11 Apr 2020 01:19:31 +0100
From:   Jules Irenge <jbi.octave@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     boqun.feng@...il.com,
        QLogic-Storage-Upstream@...gic.com (supporter:BROADCOM BNX2FC 10
        GIGABIT FCOE DRIVER), "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org (open list:BROADCOM BNX2FC 10 GIGABIT FCOE
        DRIVER)
Subject: [PATCH 7/9] scsi: bnx2fc: Add missing annotation for bnx2fc_abts_cleanup()

Sparse reports a warning at bnx2fc_abts_cleanup()

warning: context imbalance in bnx2fc_abts_cleanup() - unexpected unlock

The root cause is the missing annotation at bnx2fc_abts_cleanup()

Add the missing  __must_hold(&tgt->tgt_lock) annotation

Signed-off-by: Jules Irenge <jbi.octave@...il.com>
---
 drivers/scsi/bnx2fc/bnx2fc_io.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c
index 4c8122a82322..b45f40db9379 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_io.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_io.c
@@ -1081,6 +1081,7 @@ int bnx2fc_eh_device_reset(struct scsi_cmnd *sc_cmd)
 }
 
 static int bnx2fc_abts_cleanup(struct bnx2fc_cmd *io_req)
+	__must_hold(&tgt->tgt_lock)
 {
 	struct bnx2fc_rport *tgt = io_req->tgt;
 	unsigned int time_left;
-- 
2.24.1