diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index e8ca9f56658e..cd981fbbc60a 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -6639,6 +6639,8 @@ int addrconf_sysctl_ignore_routes_with_linkdown(struct ctl_table *ctl,
 	lctl.data = &val;
 
 	ret = proc_dointvec(&lctl, write, buffer, lenp, ppos);
+	if (ret)
+		return ret;
 
 	if (write)
 		ret = addrconf_fixup_linkdown(ctl, valp, val);