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net: FIX ipv6_forward sysctl restart 

Just returning -ERESTARTSYS without a signal pending is not
good that will just leak it to userspace.  We need return
-ERESTARTNOINTR so we always restart and set signal pending
so that we fall of the fast path of syscall return and setup
the system call restart.

So use restart_syscall() which does all of this for us.

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric W. Biederman 2009-05-13 16:58:17 +00:00 committed by David S. Miller
parent 336ca57c3b
commit 5007392d85
1 changed files with 1 additions and 1 deletions
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2
net/ipv6/addrconf.c
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@ -503,7 +503,7 @@ static int addrconf_fixup_forwarding(struct ctl_table *table, int *p, int old)
return 0;
if (!rtnl_trylock())
return -ERESTARTSYS;
return restart_syscall();
if (p == &net->ipv6.devconf_all->forwarding) {
__s32 newf = net->ipv6.devconf_all->forwarding;