Staging: 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: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/comedi/drivers/unioxx5.c

@@ -285,7 +285,7 @@ static int __unioxx5_subdev_init(struct comedi_subdevice *subdev,
 		return -EIO;
 	}
 
-	usp = (struct unioxx5_subd_priv *)kzalloc(sizeof(*usp), GFP_KERNEL);
+	usp = kzalloc(sizeof(*usp), GFP_KERNEL);
 
 	if (usp == NULL) {
 		printk(KERN_ERR "comedi%d: erorr! --> out of memory!\n", minor);

drivers/staging/crystalhd/crystalhd_misc.c

@@ -887,7 +887,7 @@ int crystalhd_create_dio_pool(struct crystalhd_adp *adp, uint32_t max_pages)
 	       BC_LINK_SG_POOL_SZ, max_pages, asz, adp->fill_byte_pool);
 
 	for (i = 0; i < BC_LINK_SG_POOL_SZ; i++) {
-		temp = (uint8_t *)kzalloc(asz, GFP_KERNEL);
+		temp = kzalloc(asz, GFP_KERNEL);
 		if ((temp) == NULL) {
 			BCMLOG_ERR("Failed to alloc %d mem\n", asz);
 			return -ENOMEM;

drivers/staging/cx25821/cx25821-audio-upstream.c

@@ -751,8 +751,7 @@ int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select)
 
 	if (dev->input_audiofilename) {
 		str_length = strlen(dev->input_audiofilename);
-		dev->_audiofilename =
-		    (char *)kmalloc(str_length + 1, GFP_KERNEL);
+		dev->_audiofilename = kmalloc(str_length + 1, GFP_KERNEL);
 
 		if (!dev->_audiofilename)
 			goto error;
@@ -766,8 +765,7 @@ int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select)
 		}
 	} else {
 		str_length = strlen(_defaultAudioName);
-		dev->_audiofilename =
-		    (char *)kmalloc(str_length + 1, GFP_KERNEL);
+		dev->_audiofilename = kmalloc(str_length + 1, GFP_KERNEL);
 
 		if (!dev->_audiofilename)
 			goto error;

drivers/staging/cx25821/cx25821-video-upstream-ch2.c

@@ -769,8 +769,7 @@ int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev, int channel_select,
 
 	if (dev->input_filename_ch2) {
 		str_length = strlen(dev->input_filename_ch2);
-		dev->_filename_ch2 =
-		    (char *)kmalloc(str_length + 1, GFP_KERNEL);
+		dev->_filename_ch2 = kmalloc(str_length + 1, GFP_KERNEL);
 
 		if (!dev->_filename_ch2)
 			goto error;
@@ -779,8 +778,7 @@ int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev, int channel_select,
 		       str_length + 1);
 	} else {
 		str_length = strlen(dev->_defaultname_ch2);
-		dev->_filename_ch2 =
-		    (char *)kmalloc(str_length + 1, GFP_KERNEL);
+		dev->_filename_ch2 = kmalloc(str_length + 1, GFP_KERNEL);
 
 		if (!dev->_filename_ch2)
 			goto error;

drivers/staging/cx25821/cx25821-video-upstream.c

@@ -825,7 +825,7 @@ int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev, int channel_select,
 
 	if (dev->input_filename) {
 		str_length = strlen(dev->input_filename);
-		dev->_filename = (char *)kmalloc(str_length + 1, GFP_KERNEL);
+		dev->_filename = kmalloc(str_length + 1, GFP_KERNEL);
 
 		if (!dev->_filename)
 			goto error;
@@ -833,7 +833,7 @@ int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev, int channel_select,
 		memcpy(dev->_filename, dev->input_filename, str_length + 1);
 	} else {
 		str_length = strlen(dev->_defaultname);
-		dev->_filename = (char *)kmalloc(str_length + 1, GFP_KERNEL);
+		dev->_filename = kmalloc(str_length + 1, GFP_KERNEL);
 
 		if (!dev->_filename)
 			goto error;

drivers/staging/et131x/et1310_rx.c

@@ -547,7 +547,7 @@ int et131x_init_recv(struct et131x_adapter *adapter)
 
 	/* Setup each RFD */
 	for (rfdct = 0; rfdct < rx_ring->NumRfd; rfdct++) {
-		rfd = (MP_RFD *) kmem_cache_alloc(rx_ring->RecvLookaside,
+		rfd = kmem_cache_alloc(rx_ring->RecvLookaside,
 						     GFP_ATOMIC | GFP_DMA);
 
 		if (!rfd) {

drivers/staging/et131x/et1310_tx.c

@@ -112,7 +112,7 @@ int et131x_tx_dma_memory_alloc(struct et131x_adapter *adapter)
 	struct tx_ring *tx_ring = &adapter->tx_ring;
 
 	/* Allocate memory for the TCB's (Transmit Control Block) */
-	adapter->tx_ring.tcb_ring = (struct tcb *)
+	adapter->tx_ring.tcb_ring =
 		kcalloc(NUM_TCB, sizeof(struct tcb), GFP_ATOMIC | GFP_DMA);
 	if (!adapter->tx_ring.tcb_ring) {
 		dev_err(&adapter->pdev->dev, "Cannot alloc memory for TCBs\n");

drivers/staging/rt2860/common/cmm_data.c

@@ -1424,7 +1424,7 @@ u32 deaggregate_AMSDU_announce(struct rt_rtmp_adapter *pAd,
 		if ((Header802_3[12] == 0x88) && (Header802_3[13] == 0x8E)) {
 			/* avoid local heap overflow, use dyanamic allocation */
 			struct rt_mlme_queue_elem *Elem =
-			    (struct rt_mlme_queue_elem *)kmalloc(sizeof(struct rt_mlme_queue_elem),
+			    kmalloc(sizeof(struct rt_mlme_queue_elem),
 							MEM_ALLOC_FLAG);
 			if (Elem != NULL) {
 				memmove(Elem->Msg +

drivers/staging/rt2860/common/cmm_mac_pci.c

@@ -1558,7 +1558,7 @@ void RT28xxPciMlmeRadioOFF(struct rt_rtmp_adapter *pAd)
 		if (INFRA_ON(pAd) || ADHOC_ON(pAd)) {
 			struct rt_mlme_disassoc_req DisReq;
 			struct rt_mlme_queue_elem *pMsgElem =
-			    (struct rt_mlme_queue_elem *)kmalloc(sizeof(struct rt_mlme_queue_elem),
+			    kmalloc(sizeof(struct rt_mlme_queue_elem),
 							MEM_ALLOC_FLAG);
 
 			if (pMsgElem) {

drivers/staging/rt2860/common/cmm_mac_usb.c

@@ -1087,7 +1087,7 @@ void RT28xxUsbMlmeRadioOFF(struct rt_rtmp_adapter *pAd)
 		if (INFRA_ON(pAd) || ADHOC_ON(pAd)) {
 			struct rt_mlme_disassoc_req DisReq;
 			struct rt_mlme_queue_elem *pMsgElem =
-			    (struct rt_mlme_queue_elem *)kmalloc(sizeof(struct rt_mlme_queue_elem),
+			    kmalloc(sizeof(struct rt_mlme_queue_elem),
 							MEM_ALLOC_FLAG);
 
 			if (pMsgElem) {

drivers/staging/rt2860/rt_linux.c

@@ -154,7 +154,7 @@ void RTMP_GetCurrentSystemTime(LARGE_INTEGER *time)
 /* pAd MUST allow to be NULL */
 int os_alloc_mem(struct rt_rtmp_adapter *pAd, u8 ** mem, unsigned long size)
 {
-	*mem = (u8 *)kmalloc(size, GFP_ATOMIC);
+	*mem = kmalloc(size, GFP_ATOMIC);
 	if (*mem)
 		return NDIS_STATUS_SUCCESS;
 	else

drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c

@@ -1435,7 +1435,7 @@ static inline u16 auth_parse(struct sk_buff *skb, u8** challenge, int *chlen)
 
 		if(*(t++) == MFIE_TYPE_CHALLENGE){
 			*chlen = *(t++);
-			*challenge = (u8*)kmalloc(*chlen, GFP_ATOMIC);
+			*challenge = kmalloc(*chlen, GFP_ATOMIC);
 			memcpy(*challenge, t, *chlen);
 		}
 	}
@@ -2861,8 +2861,7 @@ static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
 
 		ieee80211_crypt_delayed_deinit(ieee, crypt);
 
-		new_crypt = (struct ieee80211_crypt_data *)
-			kmalloc(sizeof(*new_crypt), GFP_KERNEL);
+		new_crypt = kmalloc(sizeof(*new_crypt), GFP_KERNEL);
 		if (new_crypt == NULL) {
 			ret = -ENOMEM;
 			goto done;
@@ -2953,7 +2952,7 @@ int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct iw_poin
 		goto out;
 	}
 
-	param = (struct ieee_param *)kmalloc(p->length, GFP_KERNEL);
+	param = kmalloc(p->length, GFP_KERNEL);
 	if (param == NULL){
 		ret = -ENOMEM;
 		goto out;

drivers/staging/rtl8192e/ieee80211/ieee80211_module.c

@@ -170,7 +170,7 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
 	ieee80211_softmac_init(ieee);
 
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
-	ieee->pHTInfo = (RT_HIGH_THROUGHPUT*)kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
+	ieee->pHTInfo = kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
 #else
 	ieee->pHTInfo = (RT_HIGH_THROUGHPUT*)kmalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
 	memset(ieee->pHTInfo,0,sizeof(RT_HIGH_THROUGHPUT));

drivers/staging/rtl8192e/ieee80211/ieee80211_rx.c

@@ -1397,7 +1397,7 @@ int ieee80211_rtl_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
 	/* skb: hdr + (possible reassembled) full plaintext payload */
 	payload = skb->data + hdrlen;
 	//ethertype = (payload[6] << 8) | payload[7];
-	rxb = (struct ieee80211_rxb*)kmalloc(sizeof(struct ieee80211_rxb),GFP_ATOMIC);
+	rxb = kmalloc(sizeof(struct ieee80211_rxb), GFP_ATOMIC);
 	if(rxb == NULL)
 	{
 		IEEE80211_DEBUG(IEEE80211_DL_ERR,"%s(): kmalloc rxb error\n",__FUNCTION__);

drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c

@@ -1800,7 +1800,7 @@ static inline u16 auth_parse(struct sk_buff *skb, u8** challenge, int *chlen)
 
 		if(*(t++) == MFIE_TYPE_CHALLENGE){
 			*chlen = *(t++);
-			*challenge = (u8*)kmalloc(*chlen, GFP_ATOMIC);
+			*challenge = kmalloc(*chlen, GFP_ATOMIC);
 			memcpy(*challenge, t, *chlen);
 		}
 	}
@@ -3459,8 +3459,7 @@ static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
 
 		ieee80211_crypt_delayed_deinit(ieee, crypt);
 
-		new_crypt = (struct ieee80211_crypt_data *)
-			kmalloc(sizeof(*new_crypt), GFP_KERNEL);
+		new_crypt = kmalloc(sizeof(*new_crypt), GFP_KERNEL);
 		if (new_crypt == NULL) {
 			ret = -ENOMEM;
 			goto done;
@@ -3592,7 +3591,7 @@ int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct iw_poin
 		goto out;
 	}
 
-	param = (struct ieee_param *)kmalloc(p->length, GFP_KERNEL);
+	param = kmalloc(p->length, GFP_KERNEL);
 	if (param == NULL){
 		ret = -ENOMEM;
 		goto out;

drivers/staging/rtl8192e/r8192E_core.c

@@ -5040,7 +5040,7 @@ static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
              goto out;
      }
 
-     ipw = (struct ieee_param *)kmalloc(p->length, GFP_KERNEL);
+     ipw = kmalloc(p->length, GFP_KERNEL);
      if (ipw == NULL){
              ret = -ENOMEM;
              goto out;

drivers/staging/rtl8192su/ieee80211/ieee80211_module.c

@@ -161,7 +161,7 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
 
 	ieee80211_softmac_init(ieee);
 
-	ieee->pHTInfo = (RT_HIGH_THROUGHPUT*)kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
+	ieee->pHTInfo = kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
 	if (ieee->pHTInfo == NULL)
 	{
 		IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc memory for HTInfo\n");

drivers/staging/rtl8192su/ieee80211/ieee80211_rx.c

@@ -1191,7 +1191,7 @@ int ieee80211_rtl_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
 	/* skb: hdr + (possible reassembled) full plaintext payload */
 	payload = skb->data + hdrlen;
 	//ethertype = (payload[6] << 8) | payload[7];
-	rxb = (struct ieee80211_rxb*)kmalloc(sizeof(struct ieee80211_rxb),GFP_ATOMIC);
+	rxb = kmalloc(sizeof(struct ieee80211_rxb), GFP_ATOMIC);
 	if(rxb == NULL)
 	{
 		IEEE80211_DEBUG(IEEE80211_DL_ERR,"%s(): kmalloc rxb error\n",__FUNCTION__);

drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c

@@ -1557,7 +1557,7 @@ static inline u16 auth_parse(struct sk_buff *skb, u8** challenge, int *chlen)
 
 		if(*(t++) == MFIE_TYPE_CHALLENGE){
 			*chlen = *(t++);
-			*challenge = (u8*)kmalloc(*chlen, GFP_ATOMIC);
+			*challenge = kmalloc(*chlen, GFP_ATOMIC);
 			memcpy(*challenge, t, *chlen);
 		}
 	}
@@ -3048,8 +3048,7 @@ static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
 
 		ieee80211_crypt_delayed_deinit(ieee, crypt);
 
-		new_crypt = (struct ieee80211_crypt_data *)
-			kmalloc(sizeof(*new_crypt), GFP_KERNEL);
+		new_crypt = kmalloc(sizeof(*new_crypt), GFP_KERNEL);
 		if (new_crypt == NULL) {
 			ret = -ENOMEM;
 			goto done;
@@ -3182,7 +3181,7 @@ int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct iw_poin
 		goto out;
 	}
 
-	param = (struct ieee_param *)kmalloc(p->length, GFP_KERNEL);
+	param = kmalloc(p->length, GFP_KERNEL);
 	if (param == NULL){
 		ret = -ENOMEM;
 		goto out;

drivers/staging/rtl8192su/r8192U_core.c

@@ -5747,7 +5747,7 @@ int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
              goto out;
 	}
 
-     ipw = (struct ieee_param *)kmalloc(p->length, GFP_KERNEL);
+     ipw = kmalloc(p->length, GFP_KERNEL);
      if (ipw == NULL){
              ret = -ENOMEM;
              goto out;

drivers/staging/rtl8192u/ieee80211/ieee80211_module.c

@@ -161,7 +161,7 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
 
 	ieee80211_softmac_init(ieee);
 
-	ieee->pHTInfo = (RT_HIGH_THROUGHPUT*)kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
+	ieee->pHTInfo = kzalloc(sizeof(RT_HIGH_THROUGHPUT), GFP_KERNEL);
 	if (ieee->pHTInfo == NULL)
 	{
 		IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc memory for HTInfo\n");

drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c

@@ -1302,7 +1302,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
 	/* skb: hdr + (possible reassembled) full plaintext payload */
 	payload = skb->data + hdrlen;
 	//ethertype = (payload[6] << 8) | payload[7];
-	rxb = (struct ieee80211_rxb*)kmalloc(sizeof(struct ieee80211_rxb),GFP_ATOMIC);
+	rxb = kmalloc(sizeof(struct ieee80211_rxb), GFP_ATOMIC);
 	if(rxb == NULL)
 	{
 		IEEE80211_DEBUG(IEEE80211_DL_ERR,"%s(): kmalloc rxb error\n",__FUNCTION__);

drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c

@@ -1579,7 +1579,7 @@ static inline u16 auth_parse(struct sk_buff *skb, u8** challenge, int *chlen)
 
 		if(*(t++) == MFIE_TYPE_CHALLENGE){
 			*chlen = *(t++);
-			*challenge = (u8*)kmalloc(*chlen, GFP_ATOMIC);
+			*challenge = kmalloc(*chlen, GFP_ATOMIC);
 			if (!*challenge)
 				return -ENOMEM;
 			memcpy(*challenge, t, *chlen);
@@ -3077,8 +3077,7 @@ static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
 
 		ieee80211_crypt_delayed_deinit(ieee, crypt);
 
-		new_crypt = (struct ieee80211_crypt_data *)
-			kmalloc(sizeof(*new_crypt), GFP_KERNEL);
+		new_crypt = kmalloc(sizeof(*new_crypt), GFP_KERNEL);
 		if (new_crypt == NULL) {
 			ret = -ENOMEM;
 			goto done;
@@ -3210,7 +3209,7 @@ int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct iw_poin
 		goto out;
 	}
 
-	param = (struct ieee_param *)kmalloc(p->length, GFP_KERNEL);
+	param = kmalloc(p->length, GFP_KERNEL);
 	if (param == NULL){
 		ret = -ENOMEM;
 		goto out;

drivers/staging/rtl8192u/r8192U_core.c

@@ -2216,7 +2216,8 @@ short rtl8192_usb_initendpoints(struct net_device *dev)
 {
 	struct r8192_priv *priv = ieee80211_priv(dev);
 
-	priv->rx_urb = (struct urb**) kmalloc (sizeof(struct urb*) * (MAX_RX_URB+1), GFP_KERNEL);
+	priv->rx_urb = kmalloc(sizeof(struct urb *) * (MAX_RX_URB+1),
+				GFP_KERNEL);
 
 #ifndef JACKSON_NEW_RX
 	for(i=0;i<(MAX_RX_URB+1);i++){
@@ -2250,7 +2251,8 @@ short rtl8192_usb_initendpoints(struct net_device *dev)
 #endif
 
 	memset(priv->rx_urb, 0, sizeof(struct urb*) * MAX_RX_URB);
-	priv->pp_rxskb = (struct sk_buff **)kmalloc(sizeof(struct sk_buff *) * MAX_RX_URB, GFP_KERNEL);
+	priv->pp_rxskb = kmalloc(sizeof(struct sk_buff *) * MAX_RX_URB,
+				 GFP_KERNEL);
 	if (priv->pp_rxskb == NULL)
 		goto destroy;
 
@@ -2839,7 +2841,7 @@ static void rtl8192_init_priv_variable(struct net_device* dev)
 		(priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT:0);
 
 	priv->AcmControl = 0;
-	priv->pFirmware = (rt_firmware*)kmalloc(sizeof(rt_firmware), GFP_KERNEL);
+	priv->pFirmware = kmalloc(sizeof(rt_firmware), GFP_KERNEL);
 	if (priv->pFirmware)
 	memset(priv->pFirmware, 0, sizeof(rt_firmware));
 
@@ -4415,7 +4417,7 @@ int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 	     goto out;
 	}
 
-     ipw = (struct ieee_param *)kmalloc(p->length, GFP_KERNEL);
+     ipw = kmalloc(p->length, GFP_KERNEL);
      if (ipw == NULL){
 	     ret = -ENOMEM;
 	     goto out;

drivers/staging/vme/bridges/vme_ca91cx42.c

@@ -941,8 +941,7 @@ int ca91cx42_dma_list_add(struct vme_dma_list *list, struct vme_dma_attr *src,
 	dev = list->parent->parent->parent;
 
 	/* XXX descriptor must be aligned on 64-bit boundaries */
-	entry = (struct ca91cx42_dma_entry *)
-		kmalloc(sizeof(struct ca91cx42_dma_entry), GFP_KERNEL);
+	entry = kmalloc(sizeof(struct ca91cx42_dma_entry), GFP_KERNEL);
 	if (entry == NULL) {
 		dev_err(dev, "Failed to allocate memory for dma resource "
 			"structure\n");

drivers/staging/vme/bridges/vme_tsi148.c

@@ -2309,7 +2309,7 @@ static int tsi148_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	if (err_chk) {
 		master_num--;
 
-		tsi148_device->flush_image = (struct vme_master_resource *)
+		tsi148_device->flush_image =
 			kmalloc(sizeof(struct vme_master_resource), GFP_KERNEL);
 		if (tsi148_device->flush_image == NULL) {
 			dev_err(&pdev->dev, "Failed to allocate memory for "

drivers/staging/vt6655/device_main.c

@@ -3025,7 +3025,7 @@ int Config_FileOperation(PSDevice pDevice,BOOL fwrite,unsigned char *Parameter)
 	  goto error1;
      	}
 
-buffer = (UCHAR *)kmalloc(1024, GFP_KERNEL);
+buffer = kmalloc(1024, GFP_KERNEL);
 if(buffer==NULL) {
   printk("alllocate mem for file fail?\n");
   result = -1;

drivers/staging/vt6655/hostap.c

@@ -90,7 +90,7 @@ static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked)
 
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name);
 
-	pDevice->apdev = (struct net_device *)kmalloc(sizeof(struct net_device), GFP_KERNEL);
+	pDevice->apdev = kmalloc(sizeof(struct net_device), GFP_KERNEL);
 	if (pDevice->apdev == NULL)
 		return -ENOMEM;
 	memset(pDevice->apdev, 0, sizeof(struct net_device));
@@ -768,7 +768,7 @@ int vt6655_hostap_ioctl(PSDevice pDevice, struct iw_point *p)
 	    p->length > VIAWGET_HOSTAPD_MAX_BUF_SIZE || !p->pointer)
 		return -EINVAL;
 
-	param = (struct viawget_hostapd_param *) kmalloc((int)p->length, (int)GFP_KERNEL);
+	param = kmalloc((int)p->length, (int)GFP_KERNEL);
 	if (param == NULL)
 		return -ENOMEM;
 

drivers/staging/vt6655/wpactl.c

@@ -905,7 +905,7 @@ int wpa_ioctl(PSDevice pDevice, struct iw_point *p)
 	    p->length > VIAWGET_WPA_MAX_BUF_SIZE || !p->pointer)
 		return -EINVAL;
 
-	param = (struct viawget_wpa_param *) kmalloc((int)p->length, (int)GFP_KERNEL);
+	param = kmalloc((int)p->length, (int)GFP_KERNEL);
 	if (param == NULL)
 		return -ENOMEM;
 

drivers/staging/vt6656/hostap.c

@@ -91,7 +91,7 @@ static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked)
 
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name);
 
-	pDevice->apdev = (struct net_device *)kmalloc(sizeof(struct net_device), GFP_KERNEL);
+	pDevice->apdev = kmalloc(sizeof(struct net_device), GFP_KERNEL);
 	if (pDevice->apdev == NULL)
 		return -ENOMEM;
 	memset(pDevice->apdev, 0, sizeof(struct net_device));
@@ -766,7 +766,7 @@ int vt6656_hostap_ioctl(PSDevice pDevice, struct iw_point *p)
 	    p->length > VIAWGET_HOSTAPD_MAX_BUF_SIZE || !p->pointer)
 		return -EINVAL;
 
-	param = (struct viawget_hostapd_param *) kmalloc((int)p->length, (int)GFP_KERNEL);
+	param = kmalloc((int)p->length, (int)GFP_KERNEL);
 	if (param == NULL)
 		return -ENOMEM;
 

drivers/staging/vt6656/main_usb.c

@@ -1511,7 +1511,7 @@ static UCHAR *Config_FileOperation(PSDevice pDevice) {
 	  goto error1;
      	}
 
-    buffer = (UCHAR *)kmalloc(1024, GFP_KERNEL);
+    buffer = kmalloc(1024, GFP_KERNEL);
     if(buffer==NULL) {
       printk("alllocate mem for file fail?\n");
       result = -1;

drivers/staging/vt6656/wpactl.c

@@ -926,7 +926,7 @@ int wpa_ioctl(PSDevice pDevice, struct iw_point *p)
 	    p->length > VIAWGET_WPA_MAX_BUF_SIZE || !p->pointer)
 		return -EINVAL;
 
-	param = (struct viawget_wpa_param *) kmalloc((int)p->length, (int)GFP_KERNEL);
+	param = kmalloc((int)p->length, (int)GFP_KERNEL);
 	if (param == NULL)
 		return -ENOMEM;
 

drivers/staging/wlags49_h2/wl_priv.c

@@ -618,7 +618,7 @@ int wvlan_uil_put_info( struct uilreq *urq, struct wl_private *lp )
 				   LTV record, try to allocate it from the kernel stack.
 				   Otherwise, we just use our local LTV record. */
 				if( urq->len > sizeof( lp->ltvRecord )) {
-					pLtv = (ltv_t *)kmalloc( urq->len, GFP_KERNEL );
+					pLtv = kmalloc(urq->len, GFP_KERNEL);
 					if (pLtv != NULL) {
 						ltvAllocated = TRUE;
 					} else {
@@ -1298,7 +1298,7 @@ int wvlan_uil_get_info( struct uilreq *urq, struct wl_private *lp )
 				   LTV record, try to allocate it from the kernel stack.
 				   Otherwise, we just use our local LTV record. */
 				if( urq->len > sizeof( lp->ltvRecord )) {
-					pLtv = (ltv_t *)kmalloc( urq->len, GFP_KERNEL );
+					pLtv = kmalloc(urq->len, GFP_KERNEL);
 					if (pLtv != NULL) {
 						ltvAllocated = TRUE;