linux-kernel - [PATCH] net: phy: mscc: initialize stats array

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Message-ID: <mvmh87bih1y.fsf@suse.de>
Date:   Wed, 24 Jul 2019 17:32:57 +0200
From:   Andreas Schwab <schwab@...e.de>
To:     netdev@...r.kernel.org
CC:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] net: phy: mscc: initialize stats array

The memory allocated for the stats array may contain arbitrary data.

Signed-off-by: Andreas Schwab <schwab@...e.de>
---
 drivers/net/phy/mscc.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/net/phy/mscc.c b/drivers/net/phy/mscc.c
index 28676af97b42..645d354ffb48 100644
--- a/drivers/net/phy/mscc.c
+++ b/drivers/net/phy/mscc.c
@@ -2226,8 +2226,8 @@ static int vsc8514_probe(struct phy_device *phydev)
 	vsc8531->supp_led_modes = VSC85XX_SUPP_LED_MODES;
 	vsc8531->hw_stats = vsc85xx_hw_stats;
 	vsc8531->nstats = ARRAY_SIZE(vsc85xx_hw_stats);
-	vsc8531->stats = devm_kmalloc_array(&phydev->mdio.dev, vsc8531->nstats,
-					    sizeof(u64), GFP_KERNEL);
+	vsc8531->stats = devm_kcalloc(&phydev->mdio.dev, vsc8531->nstats,
+				      sizeof(u64), GFP_KERNEL);
 	if (!vsc8531->stats)
 		return -ENOMEM;
 
@@ -2251,8 +2251,8 @@ static int vsc8574_probe(struct phy_device *phydev)
 	vsc8531->supp_led_modes = VSC8584_SUPP_LED_MODES;
 	vsc8531->hw_stats = vsc8584_hw_stats;
 	vsc8531->nstats = ARRAY_SIZE(vsc8584_hw_stats);
-	vsc8531->stats = devm_kmalloc_array(&phydev->mdio.dev, vsc8531->nstats,
-					    sizeof(u64), GFP_KERNEL);
+	vsc8531->stats = devm_kcalloc(&phydev->mdio.dev, vsc8531->nstats,
+				      sizeof(u64), GFP_KERNEL);
 	if (!vsc8531->stats)
 		return -ENOMEM;
 
@@ -2281,8 +2281,8 @@ static int vsc8584_probe(struct phy_device *phydev)
 	vsc8531->supp_led_modes = VSC8584_SUPP_LED_MODES;
 	vsc8531->hw_stats = vsc8584_hw_stats;
 	vsc8531->nstats = ARRAY_SIZE(vsc8584_hw_stats);
-	vsc8531->stats = devm_kmalloc_array(&phydev->mdio.dev, vsc8531->nstats,
-					    sizeof(u64), GFP_KERNEL);
+	vsc8531->stats = devm_kcalloc(&phydev->mdio.dev, vsc8531->nstats,
+				      sizeof(u64), GFP_KERNEL);
 	if (!vsc8531->stats)
 		return -ENOMEM;
 
@@ -2311,8 +2311,8 @@ static int vsc85xx_probe(struct phy_device *phydev)
 	vsc8531->supp_led_modes = VSC85XX_SUPP_LED_MODES;
 	vsc8531->hw_stats = vsc85xx_hw_stats;
 	vsc8531->nstats = ARRAY_SIZE(vsc85xx_hw_stats);
-	vsc8531->stats = devm_kmalloc_array(&phydev->mdio.dev, vsc8531->nstats,
-					    sizeof(u64), GFP_KERNEL);
+	vsc8531->stats = devm_kcalloc(&phydev->mdio.dev, vsc8531->nstats,
+				      sizeof(u64), GFP_KERNEL);
 	if (!vsc8531->stats)
 		return -ENOMEM;
 
-- 
2.22.0


-- 
Andreas Schwab, SUSE Labs, schwab@...e.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."