linux-kernel - [PATCH][next] net: phy: dp83869: fix return of uninitialized variable ret

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Date:   Mon, 18 Nov 2019 11:48:35 +0000
From:   Colin King <colin.king@...onical.com>
To:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Dan Murphy <dmurphy@...com>, netdev@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][next] net: phy: dp83869: fix return of uninitialized variable ret

From: Colin Ian King <colin.king@...onical.com>

In the case where the call to phy_interface_is_rgmii returns zero
the variable ret is left uninitialized and this is returned at
the end of the function dp83869_configure_rgmii.  Fix this by
returning 0 instead of the uninitialized value in ret.

Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: 01db923e8377 ("net: phy: dp83869: Add TI dp83869 phy")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/net/phy/dp83869.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/phy/dp83869.c b/drivers/net/phy/dp83869.c
index fcd418716c10..1c7a7c57dec3 100644
--- a/drivers/net/phy/dp83869.c
+++ b/drivers/net/phy/dp83869.c
@@ -239,7 +239,7 @@ static int dp83869_configure_rgmii(struct phy_device *phydev,
 			       dp83869->io_impedance &
 			       DP83869_IO_MUX_CFG_IO_IMPEDANCE_CTRL);
 
-	return ret;
+	return 0;
 }
 
 static int dp83869_configure_mode(struct phy_device *phydev,
-- 
2.24.0