rndis_host: Use 1KB buffer in rndis_unbind

rndis_command requires the caller to pass in a buffer of at least 1KB.
Signed-off-by: NJussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: NBjorge Dijkstra <bjd@jooz.net>
Acked-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/usb/rndis_host.c

@@ -577,7 +577,7 @@ static void rndis_unbind(struct usbnet *dev, struct usb_interface *intf)
 	struct rndis_halt	*halt;
 
 	/* try to clear any rndis state/activity (no i/o from stack!) */
-	halt = kzalloc(sizeof *halt, GFP_KERNEL);
+	halt = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
 	if (halt) {
 		halt->msg_type = RNDIS_MSG_HALT;
 		halt->msg_len = ccpu2(sizeof *halt);