netdev - [PATCH net-next 09/11] net/mlx4_core: Replace sscanf() with kstrtoint()

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Message-Id: <1371757222-21412-10-git-send-email-amirv@mellanox.com>
Date:	Thu, 20 Jun 2013 22:40:20 +0300
From:	Amir Vadai <amirv@...lanox.com>
To:	"David S. Miller" <davem@...emloft.net>
Cc:	netdev@...r.kernel.org, Or Gerlitz <ogerlitz@...lanox.com>,
	Amir Vadai <amirv@...lanox.com>,
	Dotan Barak <dotanb@....mellanox.com>,
	Vladimir Sokolovsky <vlad@...lanox.com>
Subject: [PATCH net-next 09/11] net/mlx4_core: Replace sscanf() with kstrtoint()

From: Dotan Barak <dotanb@....mellanox.com>

It is not safe to use sscanf.

Signed-off-by: Dotan Barak <dotanb@....mellanox.com>
Signed-off-by: Vladimir Sokolovsky <vlad@...lanox.com>
Signed-off-by: Amir Vadai <amirv@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx4/main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 2f4a260..81e4529 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -839,11 +839,11 @@ static ssize_t set_port_ib_mtu(struct device *dev,
 		return -EINVAL;
 	}
 
-	err = sscanf(buf, "%d", &mtu);
-	if (err > 0)
+	err = kstrtoint(buf, 0, &mtu);
+	if (!err)
 		ibta_mtu = int_to_ibta_mtu(mtu);
 
-	if (err <= 0 || ibta_mtu < 0) {
+	if (err || ibta_mtu < 0) {
 		mlx4_err(mdev, "%s is invalid IBTA mtu\n", buf);
 		return -EINVAL;
 	}
-- 
1.8.3.251.g1462b67

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