Staging: batman-adv: Always receive when discarding.

It does not matter if the interface is to be activated or not, we must
read the packet in order that it be discarded.

Signed-off-by: Simon Wunderlich <[e-mail]>
Signed-off-by: Andrew Lunn <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/batman-adv/routing.c

···
 {
 	int result = -EAGAIN;
 
-	if ((batman_if->if_active == IF_TO_BE_ACTIVATED)
-		&& (batman_if->raw_sock)) {
+	if (batman_if->raw_sock) {
 			result = receive_raw_packet(batman_if->raw_sock,
 						    packet_buff,
 						    PACKBUFF_SIZE);