ipv6: Check return of dev_set_allmulti
authorWang Chen <wangchen@cn.fujitsu.com>
Tue, 15 Jul 2008 03:54:23 +0000 (20:54 -0700)
committerDavid S. Miller <davem@davemloft.net>
Tue, 15 Jul 2008 03:54:23 +0000 (20:54 -0700)
commit5ae7b444137143a4e067b80354171ab128eb1b2b
tree5a903c02c26d186d2ed95d81152ee28c5e2daaa3
parentbc3f9076f671f128c82022428992c30be57f22d5
ipv6: Check return of dev_set_allmulti

allmulti might overflow.
Commit: "netdevice: Fix promiscuity and allmulti overflow" in net-next makes
dev_set_promiscuity/allmulti return error number if overflow happened.

Here, we check the positive increment for allmulti to get error return.

Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv6/ip6mr.c