From: Colin Ian King <colin.king@canonical.com>
Date: Fri, 12 Aug 2016 20:29:24 +0000 (+0100)
Subject: net: phy: initialize rc to zero to avoid returning garbage value
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d16d9d2ad778e8247617c10703dfd749c776f242;p=linux-beck.git

net: phy: initialize rc to zero to avoid returning garbage value

In the case where phydev->interrupts is not PHY_INTERRUPT_ENABLED
function vsc85xx_ack_interrupt is returning an uninitialized
garbage value.  Fix this by initializing rc to zero.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/phy/mscc.c b/drivers/net/phy/mscc.c
index 2e1de53e3548..ad33390b382a 100644
--- a/drivers/net/phy/mscc.c
+++ b/drivers/net/phy/mscc.c
@@ -84,7 +84,7 @@ static int vsc85xx_config_init(struct phy_device *phydev)
 
 static int vsc85xx_ack_interrupt(struct phy_device *phydev)
 {
-       int rc;
+       int rc = 0;
 
        if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
                rc = phy_read(phydev, MII_VSC85XX_INT_STATUS);