bridge: check kmem_cache_create() error

This patch checks kmem_cache_create() error and aborts loading module
on failure.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
diff --git a/net/bridge/br.c b/net/bridge/br.c
index 601c37d..848b8fa 100644
--- a/net/bridge/br.c
+++ b/net/bridge/br.c
@@ -37,7 +37,9 @@
 		return -EADDRINUSE;
 	}
 
-	br_fdb_init();
+	err = br_fdb_init();
+	if (err)
+		goto err_out1;
 
 	err = br_netfilter_init();
 	if (err)