pcmcia: deprecate CS_OUT_OF_RESOURCE

CS_OUT_OF_RESOURCE was almost only used to note -ENOMEM situations.
Therefore, use -ENOMEM explicitely, and also print out warnings.

CC: netdev@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

drivers/pcmcia/pcmcia_resource.c

@@ -780,7 +780,7 @@ int pcmcia_request_window(struct pcmcia_device **p_dev, win_req_t *req, window_h
 	for (w = 0; w < MAX_WIN; w++)
 		if (!(s->state & SOCKET_WIN_REQ(w))) break;
 	if (w == MAX_WIN)
-		return CS_OUT_OF_RESOURCE;
+		return CS_IN_USE;
 
 	win = &s->win[w];
 	win->magic = WINDOW_MAGIC;