From: Akinobu Mita Date: Sat, 7 Apr 2007 09:57:07 +0000 (+0900) Subject: bridge: check kmem_cache_create() error X-Git-Tag: v2.6.22-rc1~1128^2~123 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=87a596e0b8bc344bd6bfebe83b56d11fb79ee23a;p=linux-2.6 bridge: check kmem_cache_create() error This patch checks kmem_cache_create() error and aborts loading module on failure. Signed-off-by: Akinobu Mita Signed-off-by: Stephen Hemminger --- diff --git a/net/bridge/br.c b/net/bridge/br.c index 601c37d61c..848b8fa8be 100644 --- a/net/bridge/br.c +++ b/net/bridge/br.c @@ -37,7 +37,9 @@ static int __init br_init(void) return -EADDRINUSE; } - br_fdb_init(); + err = br_fdb_init(); + if (err) + goto err_out1; err = br_netfilter_init(); if (err) diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index 22645e3edf..91b017016d 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) diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 974feccd28..21bf3a9a03 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -141,7 +141,7 @@ extern void br_dev_setup(struct net_device *dev); extern int br_dev_xmit(struct sk_buff *skb, struct net_device *dev); /* br_fdb.c */ -extern void br_fdb_init(void); +extern int br_fdb_init(void); extern void br_fdb_fini(void); extern void br_fdb_flush(struct net_bridge *br); extern void br_fdb_changeaddr(struct net_bridge_port *p,