staging: r8712u: Merging Realtek's latest (v2.6.6). Removed _usb_alloc_urb.

Replaced (Realtek's) _usb_alloc_urb by (linux's own) usb_alloc_urb.
Signed-off-by: Ali Bahar <ali@internetDog.org>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/rtl8712/osdep_service.h

@@ -58,7 +58,6 @@
 #include "ethernet.h"
 #include <linux/if_arp.h>
 #include <linux/firmware.h>
-#define   _usb_alloc_urb(x, y)       usb_alloc_urb(x, y)
 #define   _usb_submit_urb(x, y)     usb_submit_urb(x, y)
 
 struct	__queue	{

drivers/staging/rtl8712/recv_linux.c

@@ -51,7 +51,7 @@ int r8712_os_recvbuf_resource_alloc(struct _adapter *padapter,
 	int res = _SUCCESS;
 
 	precvbuf->irp_pending = false;
-	precvbuf->purb = _usb_alloc_urb(0, GFP_KERNEL);
+	precvbuf->purb = usb_alloc_urb(0, GFP_KERNEL);
 	if (precvbuf->purb == NULL)
 		res = _FAIL;
 	precvbuf->pskb = NULL;

drivers/staging/rtl8712/usb_ops_linux.c

@@ -48,7 +48,7 @@ struct zero_bulkout_context {
 
 uint r8712_usb_init_intf_priv(struct intf_priv *pintfpriv)
 {
-	pintfpriv->piorw_urb = _usb_alloc_urb(0, GFP_ATOMIC);
+	pintfpriv->piorw_urb = usb_alloc_urb(0, GFP_ATOMIC);
 	if (!pintfpriv->piorw_urb)
 		return _FAIL;
 	sema_init(&(pintfpriv->io_retevt), 0);

drivers/staging/rtl8712/xmit_linux.c

@@ -113,7 +113,7 @@ int r8712_xmit_resource_alloc(struct _adapter *padapter,
 	int i;
 
 	for (i = 0; i < 8; i++) {
-		pxmitbuf->pxmit_urb[i] = _usb_alloc_urb(0, GFP_KERNEL);
+		pxmitbuf->pxmit_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
 		if (pxmitbuf->pxmit_urb[i] == NULL) {
 			printk(KERN_ERR "r8712u: pxmitbuf->pxmit_urb[i]"
 			    " == NULL");