diff options
| author | Wei Yongjun <yongjun_wei@trendmicro.com.cn> | 2012-09-09 22:38:27 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-09-11 00:13:31 +0400 |
| commit | 566f26aa705609d05940289036ab914c8a3be707 (patch) | |
| tree | fd0e25a88a89efa8b881ee57efcd1c9d8b92881a | |
| parent | 2120c52da6fe741454a60644018ad2a6abd957ac (diff) | |
| download | linux-566f26aa705609d05940289036ab914c8a3be707.tar.xz | |
caif: move the dereference below the NULL test
The dereference should be moved below the NULL test.
spatch with a semantic match is used to found this.
(http://coccinelle.lip6.fr/)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/caif/cfsrvl.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/caif/cfsrvl.c b/net/caif/cfsrvl.c index dd485f6128e8..ba217e90765e 100644 --- a/net/caif/cfsrvl.c +++ b/net/caif/cfsrvl.c @@ -211,9 +211,10 @@ void caif_client_register_refcnt(struct cflayer *adapt_layer, void (*put)(struct cflayer *lyr)) { struct cfsrvl *service; - service = container_of(adapt_layer->dn, struct cfsrvl, layer); - WARN_ON(adapt_layer == NULL || adapt_layer->dn == NULL); + if (WARN_ON(adapt_layer == NULL || adapt_layer->dn == NULL)) + return; + service = container_of(adapt_layer->dn, struct cfsrvl, layer); service->hold = hold; service->put = put; } |