batman-adv: handle routing code initialization properly
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 4cc66db..2714670 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -30,10 +30,11 @@
#include "send.h"
#include "bat_algo.h"
-static void bat_iv_ogm_iface_enable(struct hard_iface *hard_iface)
+static int bat_iv_ogm_iface_enable(struct hard_iface *hard_iface)
{
struct batman_ogm_packet *batman_ogm_packet;
uint32_t random_seqno;
+ int res = -1;
/* randomize initial seqno to avoid collision */
get_random_bytes(&random_seqno, sizeof(random_seqno));
@@ -42,6 +43,9 @@
hard_iface->packet_len = BATMAN_OGM_LEN;
hard_iface->packet_buff = kmalloc(hard_iface->packet_len, GFP_ATOMIC);
+ if (!hard_iface->packet_buff)
+ goto out;
+
batman_ogm_packet = (struct batman_ogm_packet *)hard_iface->packet_buff;
batman_ogm_packet->header.packet_type = BAT_OGM;
batman_ogm_packet->header.version = COMPAT_VERSION;
@@ -50,6 +54,11 @@
batman_ogm_packet->tq = TQ_MAX_VALUE;
batman_ogm_packet->tt_num_changes = 0;
batman_ogm_packet->ttvn = 0;
+
+ res = 0;
+
+out:
+ return res;
}
static void bat_iv_ogm_iface_disable(struct hard_iface *hard_iface)