Commit e9346b9a authored by Roland Dreier's avatar Roland Dreier Committed by Greg Kroah-Hartman

fib_rules: Fix dump_rules() not to exit early

Backports of 41fc014332d9 ("fib_rules: fix fib rule dumps across
multiple skbs") introduced a regression in "ip rule show" - it ends up
dumping the first rule over and over and never exiting, because 3.19
and earlier are missing commit 053c095a82cf ("netlink: make
nlmsg_end() and genlmsg_end() void"), so fib_nl_fill_rule() ends up
returning skb->len (i.e. > 0) in the success case.

Fix this by checking the return code for < 0 instead of != 0.
Signed-off-by: default avatarRoland Dreier <>
Signed-off-by: default avatarGreg Kroah-Hartman <>
parent 495d9de1
......@@ -606,7 +606,7 @@ static int dump_rules(struct sk_buff *skb, struct netlink_callback *cb,
err = fib_nl_fill_rule(skb, rule, NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq, RTM_NEWRULE,
NLM_F_MULTI, ops);
if (err)
if (err < 0)
Markdown is supported
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment