diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 52d10d213217c0bb8c7be5bbda65d9e31ad45e3d..edf06ca347496f1d53deb473b6768a5d3a47eca7 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -283,12 +283,11 @@ static int snmp6_alloc_dev(struct inet6_dev *idev)
 	return err;
 }
 
-static int snmp6_free_dev(struct inet6_dev *idev)
+static void snmp6_free_dev(struct inet6_dev *idev)
 {
 	snmp_mib_free((void **)idev->stats.icmpv6msg);
 	snmp_mib_free((void **)idev->stats.icmpv6);
 	snmp_mib_free((void **)idev->stats.ipv6);
-	return 0;
 }
 
 /* Nobody refers to this device, we may destroy it. */