diff --git a/drivers/net/wireless/ath/ar9170/usb.c b/drivers/net/wireless/ath/ar9170/usb.c
index 5dbb5361fd516808fccc79bc9c2dbd2fc22c5963..d3be6f9816b5c0b6f7dded683eee5f04d26e0765 100644
--- a/drivers/net/wireless/ath/ar9170/usb.c
+++ b/drivers/net/wireless/ath/ar9170/usb.c
@@ -161,8 +161,7 @@ static void ar9170_usb_submit_urb(struct ar9170_usb *aru)
 static void ar9170_usb_tx_urb_complete_frame(struct urb *urb)
 {
 	struct sk_buff *skb = urb->context;
-	struct ar9170_usb *aru = (struct ar9170_usb *)
-	      usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
+	struct ar9170_usb *aru = usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
 
 	if (unlikely(!aru)) {
 		dev_kfree_skb_irq(skb);
@@ -219,8 +218,7 @@ static void ar9170_usb_irq_completed(struct urb *urb)
 static void ar9170_usb_rx_completed(struct urb *urb)
 {
 	struct sk_buff *skb = urb->context;
-	struct ar9170_usb *aru = (struct ar9170_usb *)
-		usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
+	struct ar9170_usb *aru = usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
 	int err;
 
 	if (!aru)
diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
index 63bf9a713ce042e6249378b6e9e20546e1187952..8946e8ad1b85e9a238c562e5aae6b0803573cf77 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_stream(struct hif_device_usb *hif_dev,
 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 @@ static void ath9k_hif_usb_reg_in_cb(struct urb *urb)
 {
 	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_reboot(struct usb_device *udev)
 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 void ath9k_hif_usb_disconnect(struct usb_interface *interface)
 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_suspend(struct usb_interface *interface,
 
 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;
 
diff --git a/drivers/net/wireless/ath/carl9170/usb.c b/drivers/net/wireless/ath/carl9170/usb.c
index a268053e18e5e1e2f430deb19d2edc1ab158fd1d..2d947a30d29e5fcc495e3a2a8fe930108c330231 100644
--- a/drivers/net/wireless/ath/carl9170/usb.c
+++ b/drivers/net/wireless/ath/carl9170/usb.c
@@ -160,8 +160,7 @@ static void carl9170_usb_submit_data_urb(struct ar9170 *ar)
 
 static void carl9170_usb_tx_data_complete(struct urb *urb)
 {
-	struct ar9170 *ar = (struct ar9170 *)
-	      usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
+	struct ar9170 *ar = usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
 
 	if (WARN_ON_ONCE(!ar)) {
 		dev_kfree_skb_irq(urb->context);
diff --git a/drivers/net/wireless/p54/p54usb.c b/drivers/net/wireless/p54/p54usb.c
index d5bc21e5a02c7520d6599ad5822eafe85b267823..dd4d8fc9ad7ad9cb8f467a4e9dc011048e5c8c0b 100644
--- a/drivers/net/wireless/p54/p54usb.c
+++ b/drivers/net/wireless/p54/p54usb.c
@@ -183,7 +183,7 @@ static void p54u_rx_cb(struct urb *urb)
 static void p54u_tx_cb(struct urb *urb)
 {
 	struct sk_buff *skb = urb->context;
-	struct ieee80211_hw *dev = (struct ieee80211_hw *)
+	struct ieee80211_hw *dev =
 		usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
 
 	p54_free_skb(dev, skb);
diff --git a/drivers/net/wireless/zd1201.c b/drivers/net/wireless/zd1201.c
index b97aa9c78a96d925e4de5f25504c008f60f3dfad..415eec401e2e5aa55be1f4f688f90ef7f50785a2 100644
--- a/drivers/net/wireless/zd1201.c
+++ b/drivers/net/wireless/zd1201.c
@@ -1830,7 +1830,7 @@ static int zd1201_probe(struct usb_interface *interface,
 
 static void zd1201_disconnect(struct usb_interface *interface)
 {
-	struct zd1201 *zd=(struct zd1201 *)usb_get_intfdata(interface);
+	struct zd1201 *zd = usb_get_intfdata(interface);
 	struct hlist_node *node, *node2;
 	struct zd1201_frag *frag;