staging: rtl8188eu: Remove function rtw_os_recvbuf_resource_free()

Use usb_free_urb() instead of rtw_os_recvbuf_resource_free() to free URB.
Signed-off-by: navin patidar <navin.patidar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/hal/rtl8188eu_recv.c

@@ -97,7 +97,7 @@ void rtl8188eu_free_recv_priv(struct adapter *padapter)
 	precvbuf = (struct recv_buf *)precvpriv->precv_buf;
 
 	for (i = 0; i < NR_RECVBUFF; i++) {
-		rtw_os_recvbuf_resource_free(padapter, precvbuf);
+		usb_free_urb(precvbuf->purb);
 		precvbuf++;
 	}
 

drivers/staging/rtl8188eu/include/recv_osdep.h

@@ -42,7 +42,6 @@ int rtw_os_recv_resource_alloc(struct adapter *adapt,
 			       struct recv_frame *recvfr);
 
 int rtw_os_recvbuf_resource_alloc(struct adapter *adapt, struct recv_buf *buf);
-int rtw_os_recvbuf_resource_free(struct adapter *adapt, struct recv_buf *buf);
 
 void rtw_os_read_port(struct adapter *padapter, struct recv_buf *precvbuf);
 

drivers/staging/rtl8188eu/os_dep/recv_linux.c

@@ -51,14 +51,6 @@ int rtw_os_recvbuf_resource_alloc(struct adapter *padapter,
 	return res;
 }
 
-/* free os related resource in struct recv_buf */
-int rtw_os_recvbuf_resource_free(struct adapter *padapter,
-				 struct recv_buf *precvbuf)
-{
-	usb_free_urb(precvbuf->purb);
-	return _SUCCESS;
-}
-
 void rtw_handle_tkip_mic_err(struct adapter *padapter, u8 bgroup)
 {
 	union iwreq_data wrqu;