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Commit f0fb9b28 authored by Aditya Pakki's avatar Aditya Pakki Committed by David S. Miller
Browse files

ipv6/route: Add a missing check on proc_dointvec 



While flushing the cache via  ipv6_sysctl_rtcache_flush(), the call
to proc_dointvec() may fail. The fix adds a check that returns the
error, on failure.

Signed-off-by: default avatarAditya Pakki <pakki001@umn.edu>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent dc4501ff

net/ipv6/route.c

+5 −1
Original line number Diff line number Diff line
@@ -5054,12 +5054,16 @@ int ipv6_sysctl_rtcache_flush(struct ctl_table *ctl, int write, 
{

	struct net *net;

	int delay;

	int ret;

	if (!write)

		return -EINVAL;



	net = (struct net *)ctl->extra1;

	delay = net->ipv6.sysctl.flush_delay;

	proc_dointvec(ctl, write, buffer, lenp, ppos);

	ret = proc_dointvec(ctl, write, buffer, lenp, ppos);

	if (ret)

		return ret;



	fib6_run_gc(delay <= 0 ? 0 : (unsigned long)delay, net, delay > 0);

	return 0;

}