net/caif: Use kzalloc

Use kzalloc rather than the combination of kmalloc and memset.

A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x,size,flags;
statement S;
@@

-x = kmalloc(size,flags);
+x = kzalloc(size,flags);
 if (x == NULL) S
-memset(x, 0, size);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/caif/cfcnfg.c b/net/caif/cfcnfg.c
index 471c629..df43f26 100644
--- a/net/caif/cfcnfg.c
+++ b/net/caif/cfcnfg.c
@@ -65,12 +65,11 @@
 	struct cfcnfg *this;
 	struct cfctrl_rsp *resp;
 	/* Initiate this layer */
-	this = kmalloc(sizeof(struct cfcnfg), GFP_ATOMIC);
+	this = kzalloc(sizeof(struct cfcnfg), GFP_ATOMIC);
 	if (!this) {
 		pr_warning("CAIF: %s(): Out of memory\n", __func__);
 		return NULL;
 	}
-	memset(this, 0, sizeof(struct cfcnfg));
 	this->mux = cfmuxl_create();
 	if (!this->mux)
 		goto out_of_mem;