From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 12 Jul 2018 15:23:45 +0300
Subject: qlogic: check kstrtoul() for errors
Patch-mainline: v4.18-rc6
Git-commit: 5fc853cc01c68f84984ecc2d5fd777ecad78240f
References: bsc#1050540 FATE#322896
We accidentally left out the error handling for kstrtoul().
Fixes: a520030e326a ("qlcnic: Implement flash sysfs callback for 83xx adapter")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
@@ -1128,6 +1128,8 @@ static ssize_t qlcnic_83xx_sysfs_flash_w
struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
ret = kstrtoul(buf, 16, &data);
+ if (ret)
+ return ret;
switch (data) {
case QLC_83XX_FLASH_SECTOR_ERASE_CMD: