From da26a625bfa8d12b789f12a107a2e389c236c362 Mon Sep 17 00:00:00 2001 From: Christian Engelmayer Date: Sat, 17 May 2014 23:52:03 +0200 Subject: [PATCH] net/mlx4_en: Fix uninitialized use of 'port_up' in mlx4_en_set_channels() Function mlx4_en_set_channels() stops running ports before performing the requested action. In that case local variable 'port_up' is set so that the port is restarted at the end of the function, however, in case the port was not stopped, variable 'port_up' is left uninitialized and the behaviour is undetermined. Detected by Coverity - CID 751497. Signed-off-by: Christian Engelmayer Acked-By: Amir Vadai Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/en_ethtool.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c index a72d99fd7a2d..7ba3df3cb312 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c @@ -1121,7 +1121,7 @@ static int mlx4_en_set_channels(struct net_device *dev, { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; - int port_up; + int port_up = 0; int err = 0; if (channel->other_count || channel->combined_count ||