staging: rtl8188eu: Remove 'u8 *pbuf' from struct recv_buf

Instead of using pbuf to pass sbk data pointer to usb_fill_bulk_urb(),
we can use precvbuf->pskb->data to do that.
Signed-off-by: Nnavin patidar <navin.patidar@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/hal/usb_ops_linux.c

@@ -612,10 +612,7 @@ static u32 usb_read_port(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *rmem)
 		tmpaddr = (size_t)precvbuf->pskb->data;
 		alignment = tmpaddr & (RECVBUFF_ALIGN_SZ-1);
 		skb_reserve(precvbuf->pskb, (RECVBUFF_ALIGN_SZ - alignment));
-
-		precvbuf->pbuf = precvbuf->pskb->data;
 	} else { /* reuse skb */
-		precvbuf->pbuf = precvbuf->pskb->data;
 		precvbuf->reuse = false;
 	}
 
@@ -627,7 +624,7 @@ static u32 usb_read_port(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *rmem)
 	pipe = ffaddr2pipehdl(pdvobj, addr);
 
 	usb_fill_bulk_urb(purb, pusbd, pipe,
-			  precvbuf->pbuf,
+			  precvbuf->pskb->data,
 			  MAX_RECVBUF_SZ,
 			  usb_read_port_complete,
 			  precvbuf);/* context is precvbuf */

drivers/staging/rtl8188eu/include/rtw_recv.h

@@ -236,7 +236,6 @@ struct sta_recv_priv {
 
 struct recv_buf {
 	struct adapter *adapter;
-	u8	*pbuf;
 	struct urb *purb;
 	struct sk_buff *pskb;
 	u8	reuse;

drivers/staging/rtl8188eu/os_dep/recv_linux.c

@@ -60,7 +60,6 @@ int rtw_os_recvbuf_resource_alloc(struct adapter *padapter,
 		res = _FAIL;
 	precvbuf->pskb = NULL;
 	precvbuf->reuse = false;
-	precvbuf->pbuf = NULL;
 	return res;
 }