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Message-Id: <20191104211914.396887035@linuxfoundation.org>
Date: Mon, 4 Nov 2019 22:45:13 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org,
syzbot+f1842130bbcfb335bac1@...kaller.appspotmail.com,
Valentin Vidic <vvidic@...entin-vidic.from.hr>,
"David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.4 42/46] net: usb: sr9800: fix uninitialized local variable
From: Valentin Vidic <vvidic@...entin-vidic.from.hr>
commit 77b6d09f4ae66d42cd63b121af67780ae3d1a5e9 upstream.
Make sure res does not contain random value if the call to
sr_read_cmd fails for some reason.
Reported-by: syzbot+f1842130bbcfb335bac1@...kaller.appspotmail.com
Signed-off-by: Valentin Vidic <vvidic@...entin-vidic.from.hr>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/net/usb/sr9800.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/usb/sr9800.c
+++ b/drivers/net/usb/sr9800.c
@@ -336,7 +336,7 @@ static void sr_set_multicast(struct net_
static int sr_mdio_read(struct net_device *net, int phy_id, int loc)
{
struct usbnet *dev = netdev_priv(net);
- __le16 res;
+ __le16 res = 0;
mutex_lock(&dev->phy_mutex);
sr_set_sw_mii(dev);
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