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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>
This commit is contained in:
Wei Yongjun 2012-09-09 18:38:27 +00:00 committed by David S. Miller
parent 2120c52da6
commit 566f26aa70
1 changed files with 3 additions and 2 deletions
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5
net/caif/cfsrvl.c
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@ -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;
}