Staging: batman-adv: process OGMs bigger than MAX_AGGREGATION_BYTES

Reported-by: Sam Yeung <sam.cwyeung@gmail.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/batman-adv/aggregation.c

@@ -257,9 +257,7 @@ void receive_aggr_bat_packet(struct ethhdr *ethhdr, unsigned char *packet_buff,
 
 	batman_packet = (struct batman_packet *)packet_buff;
 
-	while (aggregated_packet(buff_pos, packet_len,
-				 batman_packet->num_hna)) {
-
+	do {
 		/* network to host order for our 32bit seqno, and the
 		   orig_interval. */
 		batman_packet->seqno = ntohl(batman_packet->seqno);
@@ -272,5 +270,6 @@ void receive_aggr_bat_packet(struct ethhdr *ethhdr, unsigned char *packet_buff,
 		buff_pos += BAT_PACKET_LEN + hna_len(batman_packet);
 		batman_packet = (struct batman_packet *)
 			(packet_buff + buff_pos);
-	}
+	} while (aggregated_packet(buff_pos, packet_len,
+				   batman_packet->num_hna));
 }