staging: rtl8712: r8712_os_recvbuf_resource_free(): Change return type

Change return type of r8712_os_recvbuf_resource_free from int to void as
it always returns _SUCCESS and this return value is never stored,
checked or otherwise used. Remove return statement accordingly.

Signed-off-by: Nishka Dasgupta <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/rtl8712/recv_linux.c

···
 }
 
 /*free os related resource in struct recv_buf*/
-int r8712_os_recvbuf_resource_free(struct _adapter *padapter,
-			     struct recv_buf *precvbuf)
+void r8712_os_recvbuf_resource_free(struct _adapter *padapter,
+				    struct recv_buf *precvbuf)
 {
 	if (precvbuf->pskb)
 		dev_kfree_skb_any(precvbuf->pskb);
···
 		usb_kill_urb(precvbuf->purb);
 		usb_free_urb(precvbuf->purb);
 	}
-	return _SUCCESS;
 }
 
 void r8712_handle_tkip_mic_err(struct _adapter *adapter, u8 bgroup)

drivers/staging/rtl8712/recv_osdep.h

···
 				  union recv_frame *precvframe);
 int r8712_os_recvbuf_resource_alloc(struct _adapter *padapter,
 				    struct recv_buf *precvbuf);
-int r8712_os_recvbuf_resource_free(struct _adapter *padapter,
-				   struct recv_buf *precvbuf);
+void r8712_os_recvbuf_resource_free(struct _adapter *padapter,
+				    struct recv_buf *precvbuf);
 void r8712_init_recv_timer(struct recv_reorder_ctrl *preorder_ctrl);
 
 #endif