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>

1 files changed, 5 insertions, 1 deletions

diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index 22645e3edf23..91b017016d5b 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -31,13 +31,17 @@ static int fdb_insert(struct net_bridge *br, struct net_bridge_port *source,
 
 static u32 fdb_salt __read_mostly;
 
-void __init br_fdb_init(void)
+int __init br_fdb_init(void)
 {
         br_fdb_cache = kmem_cache_create("bridge_fdb_cache",
                                          sizeof(struct net_bridge_fdb_entry),
                                          0,
                                          SLAB_HWCACHE_ALIGN, NULL, NULL);
+        if (!br_fdb_cache)
+                return -ENOMEM;
+
         get_random_bytes(&fdb_salt, sizeof(fdb_salt));
+        return 0;
 }
 
 void __exit br_fdb_fini(void)