ipv4: Check return of dev_set_allmulti

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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.

PS: For unwinding tunnel creating, we let ipip->ioctl() to handle it.

Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Wang Chen 2008-07-14 20:55:26 -07:00 • committed by David S. Miller

parent 7af3db78a9

commit d607032db0

1 changed files with 39 additions and 1 deletions

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net/ipv4/ipmr.c

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