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ipv6: Set mcast_hops to IPV6_DEFAULT_MCASTHOPS when -1 was given.

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We need to set np->mcast_hops to it's default value at this moment
otherwise when we use it and found it's value is -1, the logic to
get default hop limit doesn't take multicast into account and will
return wrong hop limit(IPV6_DEFAULT_HOPLIMIT) which is for unicast.

Signed-off-by: Li Wei <lw@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Li Wei 2011-11-27 21:33:34 +00:00 committed by David S. Miller
parent 5cac98dd06
commit 2a38e6d5ae
1 changed files with 1 additions and 1 deletions
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2
net/ipv6/ipv6_sockglue.c
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@ -503,7 +503,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
goto e_inval;
if (val > 255 || val < -1)
goto e_inval;
np->mcast_hops = val;
np->mcast_hops = (val == -1 ? IPV6_DEFAULT_MCASTHOPS : val);
retv = 0;
break;