wireless: Remove unnecessary casts of usb_get_intfdata

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
index 63bf9a7..8946e8a 100644
--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
@@ -471,7 +471,7 @@
 static void ath9k_hif_usb_rx_cb(struct urb *urb)
 {
 	struct sk_buff *skb = (struct sk_buff *) urb->context;
-	struct hif_device_usb *hif_dev = (struct hif_device_usb *)
+	struct hif_device_usb *hif_dev =
 		usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
 	int ret;
 
@@ -518,7 +518,7 @@
 {
 	struct sk_buff *skb = (struct sk_buff *) urb->context;
 	struct sk_buff *nskb;
-	struct hif_device_usb *hif_dev = (struct hif_device_usb *)
+	struct hif_device_usb *hif_dev =
 		usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
 	int ret;
 
@@ -993,8 +993,7 @@
 static void ath9k_hif_usb_disconnect(struct usb_interface *interface)
 {
 	struct usb_device *udev = interface_to_usbdev(interface);
-	struct hif_device_usb *hif_dev =
-		(struct hif_device_usb *) usb_get_intfdata(interface);
+	struct hif_device_usb *hif_dev = usb_get_intfdata(interface);
 
 	if (hif_dev) {
 		ath9k_htc_hw_deinit(hif_dev->htc_handle,
@@ -1016,8 +1015,7 @@
 static int ath9k_hif_usb_suspend(struct usb_interface *interface,
 				 pm_message_t message)
 {
-	struct hif_device_usb *hif_dev =
-		(struct hif_device_usb *) usb_get_intfdata(interface);
+	struct hif_device_usb *hif_dev = usb_get_intfdata(interface);
 
 	ath9k_hif_usb_dealloc_urbs(hif_dev);
 
@@ -1026,8 +1024,7 @@
 
 static int ath9k_hif_usb_resume(struct usb_interface *interface)
 {
-	struct hif_device_usb *hif_dev =
-		(struct hif_device_usb *) usb_get_intfdata(interface);
+	struct hif_device_usb *hif_dev = usb_get_intfdata(interface);
 	struct htc_target *htc_handle = hif_dev->htc_handle;
 	int ret;