net: usb: sr9800: fix uninitialized local variable
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@syzkaller.appspotmail.com Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -336,7 +336,7 @@ static void sr_set_multicast(struct net_device *net)
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static int sr_mdio_read(struct net_device *net, int phy_id, int loc)
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{
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struct usbnet *dev = netdev_priv(net);
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__le16 res;
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__le16 res = 0;
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mutex_lock(&dev->phy_mutex);
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sr_set_sw_mii(dev);
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