[patch 1/2] dcb: unlock on error in dcbnl_ieee_get()
From: Dan Carpenter <hidden>
Date: 2011-01-05 07:03:35
Also in:
kernel-janitors
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
There is a "goto nla_put_failure" hidden inside the NLA_PUT() macro, but we're holding the dcb_lock so we need to unlock first. Signed-off-by: Dan Carpenter <redacted>
diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
index ff3c12d..8881cb5 100644
--- a/net/dcb/dcbnl.c
+++ b/net/dcb/dcbnl.c@@ -1264,9 +1264,14 @@ static int dcbnl_ieee_get(struct net_device *netdev, struct nlattr **tb, spin_lock(&dcb_lock); list_for_each_entry(itr, &dcb_app_list, list) { - if (strncmp(itr->name, netdev->name, IFNAMSIZ) == 0) - NLA_PUT(skb, DCB_ATTR_IEEE_APP, - sizeof(itr->app), &itr->app); + if (strncmp(itr->name, netdev->name, IFNAMSIZ) == 0) { + err = nla_put(skb, DCB_ATTR_IEEE_APP, sizeof(itr->app), + &itr->app); + if (err) { + spin_unlock(&dcb_lock); + goto nla_put_failure; + } + } } spin_unlock(&dcb_lock); nla_nest_end(skb, app);