linux-kernel - [PATCH 3.16 037/148] scsi: esas2r: unlock on error in esas2r_nvram_read

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Message-ID: <lsq.1581185940.640287994@decadent.org.uk>
Date:   Sat, 08 Feb 2020 18:19:36 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, Denis Kirjanov <kda@...ux-powerpc.org>,
        "Dan Carpenter" <dan.carpenter@...cle.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
Subject: [PATCH 3.16 037/148] scsi: esas2r: unlock on error in
 esas2r_nvram_read_direct()

3.16.82-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@...cle.com>

commit 906ca6353ac09696c1bf0892513c8edffff5e0a6 upstream.

This error path is missing an unlock.

Fixes: 26780d9e12ed ("[SCSI] esas2r: ATTO Technology ExpressSAS 6G SAS/SATA RAID Adapter Driver")
Link: https://lore.kernel.org/r/20191022102324.GA27540@mwanda
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/scsi/esas2r/esas2r_flash.c | 1 +
 1 file changed, 1 insertion(+)

--- a/drivers/scsi/esas2r/esas2r_flash.c
+++ b/drivers/scsi/esas2r/esas2r_flash.c
@@ -1197,6 +1197,7 @@ bool esas2r_nvram_read_direct(struct esa
 	if (!esas2r_read_flash_block(a, a->nvram, FLS_OFFSET_NVR,
 				     sizeof(struct esas2r_sas_nvram))) {
 		esas2r_hdebug("NVRAM read failed, using defaults");
+		up(&a->nvram_semaphore);
 		return false;
 	}