[IPV4]: Handle kmem_cache_create() failure in ipmr.c

diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index a3720f2f8014779768fea55ba4a99983ffb8c548..ca7e1e57e44b4e95dc062fa86e61753af675e726 100644 (file)
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -1892,6 +1892,9 @@ void __init ip_mr_init(void)
                                       sizeof(struct mfc_cache),
                                       0, SLAB_HWCACHE_ALIGN,
                                       NULL, NULL);
+       if (!mrt_cachep)
+               panic("cannot allocate ip_mrt_cache");
+
        init_timer(&ipmr_expire_timer);
        ipmr_expire_timer.function=ipmr_expire_process;
        register_netdevice_notifier(&ip_mr_notifier);