linux-kernel - [PATCH] net: phy: fix uninitalized ethtool_wolinfo in phy

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Message-Id: <1394788064-6832-1-git-send-email-sebastian.hesselbarth@gmail.com>
Date:	Fri, 14 Mar 2014 10:07:44 +0100
From:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
To:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Cc:	David Miller <davem@...emloft.net>,
	Florian Fainelli <f.fainelli@...il.com>,
	Ben Hutchings <ben@...adent.org.uk>, netdev@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] net: phy: fix uninitalized ethtool_wolinfo in phy_suspend

Callers of phy_ethtool_get_wol are supposed to provide a properly
cleared struct ethtool_wolinfo. Therefore, fix phy_suspend to clear
it before passing it to phy_ethtool_get_wol.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
---
Cc: David Miller <davem@...emloft.net>
Cc: Florian Fainelli <f.fainelli@...il.com>
Cc: Ben Hutchings <ben@...adent.org.uk>
Cc: netdev@...r.kernel.org
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
---
 drivers/net/phy/phy_device.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 4b03e63639b7..7512e28866f1 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -683,10 +683,9 @@ EXPORT_SYMBOL(phy_detach);
 int phy_suspend(struct phy_device *phydev)
 {
 	struct phy_driver *phydrv = to_phy_driver(phydev->dev.driver);
-	struct ethtool_wolinfo wol;
+	struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
 
 	/* If the device has WOL enabled, we cannot suspend the PHY */
-	wol.cmd = ETHTOOL_GWOL;
 	phy_ethtool_get_wol(phydev, &wol);
 	if (wol.wolopts)
 		return -EBUSY;
-- 
1.8.5.3

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