staging:r8188eu: change usb_read_port last argument type to (struct *recv_buf)

To avoid unnecessary typecasts.
Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/hal/usb_halinit.c

@@ -999,7 +999,7 @@ u32 rtw_hal_inirp_init(struct adapter *Adapter)
 	/* issue Rx irp to receive data */
 	precvbuf = (struct recv_buf *)precvpriv->precv_buf;
 	for (i = 0; i < NR_RECVBUFF; i++) {
-		if (usb_read_port(Adapter, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf) == false) {
+		if (usb_read_port(Adapter, precvpriv->ff_hwaddr, 0, precvbuf) == false) {
 			RT_TRACE(_module_hci_hal_init_c_, _drv_err_, ("usb_rx_init: usb_read_port error\n"));
 			status = _FAIL;
 			goto exit;

drivers/staging/rtl8188eu/include/usb_ops_linux.h

@@ -53,7 +53,7 @@ u8 usb_read8(struct adapter *adapter, u32 addr);
 u16 usb_read16(struct adapter *adapter, u32 addr);
 u32 usb_read32(struct adapter *adapter, u32 addr);
 
-u32 usb_read_port(struct adapter *adapter, u32 addr, u32 cnt, u8 *pmem);
+u32 usb_read_port(struct adapter *adapter, u32 addr, u32 cnt, struct recv_buf *precvbuf);
 void usb_read_port_cancel(struct adapter *adapter);
 
 int usb_write8(struct adapter *adapter, u32 addr, u8 val);

drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c

@@ -403,7 +403,7 @@ static void usb_read_port_complete(struct urb *purb, struct pt_regs *regs)
 			RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
 				 ("usb_read_port_complete: (purb->actual_length > MAX_RECVBUF_SZ) || (purb->actual_length < RXDESC_SIZE)\n"));
 			precvbuf->reuse = true;
-			usb_read_port(adapt, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
+			usb_read_port(adapt, precvpriv->ff_hwaddr, 0, precvbuf);
 			DBG_88E("%s()-%d: RX Warning!\n", __func__, __LINE__);
 		} else {
 			skb_put(precvbuf->pskb, purb->actual_length);
@@ -414,7 +414,7 @@ static void usb_read_port_complete(struct urb *purb, struct pt_regs *regs)
 
 			precvbuf->pskb = NULL;
 			precvbuf->reuse = false;
-			usb_read_port(adapt, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
+			usb_read_port(adapt, precvpriv->ff_hwaddr, 0, precvbuf);
 		}
 	} else {
 		RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete : purb->status(%d) != 0\n", purb->status));
@@ -437,7 +437,7 @@ static void usb_read_port_complete(struct urb *purb, struct pt_regs *regs)
 		case -EOVERFLOW:
 			adapt->HalData->srestpriv.Wifi_Error_Status = USB_READ_PORT_FAIL;
 			precvbuf->reuse = true;
-			usb_read_port(adapt, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
+			usb_read_port(adapt, precvpriv->ff_hwaddr, 0, precvbuf);
 			break;
 		case -EINPROGRESS:
 			DBG_88E("ERROR: URB IS IN PROGRESS!\n");
@@ -448,10 +448,9 @@ static void usb_read_port_complete(struct urb *purb, struct pt_regs *regs)
 	}
 }
 
-u32 usb_read_port(struct adapter *adapter, u32 addr, u32 cnt, u8 *rmem)
+u32 usb_read_port(struct adapter *adapter, u32 addr, u32 cnt, struct recv_buf *precvbuf)
 {
 	struct urb *purb = NULL;
-	struct recv_buf	*precvbuf = (struct recv_buf *)rmem;
 	struct dvobj_priv	*pdvobj = adapter_to_dvobj(adapter);
 	struct recv_priv	*precvpriv = &adapter->recvpriv;
 	struct usb_device	*pusbd = pdvobj->pusbdev;