From a6d50512b4d86ecd9f5952525e454583be1c3b14 Mon Sep 17 00:00:00 2001 From: Edward Cree Date: Wed, 28 Feb 2018 19:15:58 +0000 Subject: net: ethtool: don't ignore return from driver get_fecparam method If ethtool_ops->get_fecparam returns an error, pass that error on to the user, rather than ignoring it. Fixes: 1a5f3da20bd9 ("net: ethtool: add support for forward error correction modes") Signed-off-by: Edward Cree Signed-off-by: David S. Miller --- net/core/ethtool.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'net/core/ethtool.c') diff --git a/net/core/ethtool.c b/net/core/ethtool.c index 494e6a5d7306..3f89c76d5c24 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -2520,11 +2520,14 @@ static int set_phy_tunable(struct net_device *dev, void __user *useraddr) static int ethtool_get_fecparam(struct net_device *dev, void __user *useraddr) { struct ethtool_fecparam fecparam = { ETHTOOL_GFECPARAM }; + int rc; if (!dev->ethtool_ops->get_fecparam) return -EOPNOTSUPP; - dev->ethtool_ops->get_fecparam(dev, &fecparam); + rc = dev->ethtool_ops->get_fecparam(dev, &fecparam); + if (rc) + return rc; if (copy_to_user(useraddr, &fecparam, sizeof(fecparam))) return -EFAULT; -- cgit v1.2.3