drivers/s390/net: Drop memory allocation cast

Drop cast on the result of kmalloc and similar functions.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
type T;
@@

- (T *)
  (\(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|
   kmem_cache_alloc_node\|kmalloc_node\|kzalloc_node\)(...))
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/s390/net/ctcm_mpc.c b/drivers/s390/net/ctcm_mpc.c
index 5978b39..87c24d2 100644
--- a/drivers/s390/net/ctcm_mpc.c
+++ b/drivers/s390/net/ctcm_mpc.c
@@ -669,8 +669,7 @@
 				goto done;
 	}
 
-	header = (struct th_sweep *)
-			kmalloc(sizeof(struct th_sweep), gfp_type());
+	header = kmalloc(sizeof(struct th_sweep), gfp_type());
 
 	if (!header) {
 		dev_kfree_skb_any(sweep_skb);
@@ -1191,8 +1190,7 @@
 			skb_pull(pskb, new_len); /* point to next PDU */
 		}
 	} else {
-		mpcginfo = (struct mpcg_info *)
-				kmalloc(sizeof(struct mpcg_info), gfp_type());
+		mpcginfo = kmalloc(sizeof(struct mpcg_info), gfp_type());
 		if (mpcginfo == NULL)
 					goto done;