diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c
index ed00ebb..9c50336 100644
--- a/drivers/net/wireless/hostap/hostap_hw.c
+++ b/drivers/net/wireless/hostap/hostap_hw.c
@@ -347,14 +347,12 @@
 	if (signal_pending(current))
 		return -EINTR;
 
-	entry = (struct hostap_cmd_queue *)
-		kmalloc(sizeof(*entry), GFP_ATOMIC);
+	entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
 	if (entry == NULL) {
 		printk(KERN_DEBUG "%s: hfa384x_cmd - kmalloc failed\n",
 		       dev->name);
 		return -ENOMEM;
 	}
-	memset(entry, 0, sizeof(*entry));
 	atomic_set(&entry->usecnt, 1);
 	entry->type = CMD_SLEEP;
 	entry->cmd = cmd;
@@ -517,14 +515,12 @@
 		return -1;
 	}
 
-	entry = (struct hostap_cmd_queue *)
-		kmalloc(sizeof(*entry), GFP_ATOMIC);
+	entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
 	if (entry == NULL) {
 		printk(KERN_DEBUG "%s: hfa384x_cmd_callback - kmalloc "
 		       "failed\n", dev->name);
 		return -ENOMEM;
 	}
-	memset(entry, 0, sizeof(*entry));
 	atomic_set(&entry->usecnt, 1);
 	entry->type = CMD_CALLBACK;
 	entry->cmd = cmd;
@@ -3015,14 +3011,12 @@
 	iface = netdev_priv(dev);
 	local = iface->local;
 
-	new_entry = (struct set_tim_data *)
-		kmalloc(sizeof(*new_entry), GFP_ATOMIC);
+	new_entry = kzalloc(sizeof(*new_entry), GFP_ATOMIC);
 	if (new_entry == NULL) {
 		printk(KERN_DEBUG "%s: prism2_set_tim: kmalloc failed\n",
 		       local->dev->name);
 		return -ENOMEM;
 	}
-	memset(new_entry, 0, sizeof(*new_entry));
 	new_entry->aid = aid;
 	new_entry->set = set;