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authorEric W. Biederman <ebiederm@xmission.com>2009-05-13 16:58:17 +0000
committerDavid S. Miller <davem@davemloft.net>2009-05-18 22:15:58 -0700
commit5007392d8512e666107dc356d4c2e05627b9029b (patch)
tree95f89bd01bca414a6bd40ea46fd6065bebe6b135
parent336ca57c3b4e2b58ea3273e6d978ab3dfa387b4c (diff)
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>
-rw-r--r--net/ipv6/addrconf.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index a8218bc1806..9eb61c7cae5 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -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;