Repository : ssh://git@open-mesh.org/batman-adv
On branch : master
commit a467a767dace62a63652fa757d54c13586054ad8 Author: Markus Pargmann mpa@pengutronix.de Date: Fri Dec 26 12:41:31 2014 +0100
batman-adv: iv_ogm_aggregate_new, simplify error handling
It is just a bit easier to put the error handling at one place and let multiple error paths use the same calls.
Signed-off-by: Markus Pargmann mpa@pengutronix.de Signed-off-by: Marek Lindner mareklindner@neomailbox.ch
a467a767dace62a63652fa757d54c13586054ad8 bat_iv_ogm.c | 28 +++++++++++++--------------- 1 file changed, 13 insertions(+), 15 deletions(-)
diff --git a/bat_iv_ogm.c b/bat_iv_ogm.c index 9555aa6..7fb6bcb 100644 --- a/bat_iv_ogm.c +++ b/bat_iv_ogm.c @@ -642,19 +642,16 @@ static void batadv_iv_ogm_aggregate_new(const unsigned char *packet_buff, if (!batadv_atomic_dec_not_zero(&bat_priv->batman_queue_left)) { batadv_dbg(BATADV_DBG_BATMAN, bat_priv, "batman packet queue full\n"); - goto out; + goto out_free_outgoing; } }
forw_packet_aggr = kmalloc(sizeof(*forw_packet_aggr), GFP_ATOMIC); - if (!forw_packet_aggr) { - if (!own_packet) - atomic_inc(&bat_priv->batman_queue_left); - goto out; - } + if (!forw_packet_aggr) + goto out_nomem;
- if ((atomic_read(&bat_priv->aggregated_ogms)) && - (packet_len < BATADV_MAX_AGGREGATION_BYTES)) + if (atomic_read(&bat_priv->aggregated_ogms) && + packet_len < BATADV_MAX_AGGREGATION_BYTES) skb_size = BATADV_MAX_AGGREGATION_BYTES; else skb_size = packet_len; @@ -662,12 +659,8 @@ static void batadv_iv_ogm_aggregate_new(const unsigned char *packet_buff, skb_size += ETH_HLEN;
forw_packet_aggr->skb = netdev_alloc_skb_ip_align(NULL, skb_size); - if (!forw_packet_aggr->skb) { - if (!own_packet) - atomic_inc(&bat_priv->batman_queue_left); - kfree(forw_packet_aggr); - goto out; - } + if (!forw_packet_aggr->skb) + goto out_free_forw_packet; forw_packet_aggr->skb->priority = TC_PRIO_CONTROL; skb_reserve(forw_packet_aggr->skb, ETH_HLEN);
@@ -699,7 +692,12 @@ static void batadv_iv_ogm_aggregate_new(const unsigned char *packet_buff, send_time - jiffies);
return; -out: +out_free_forw_packet: + kfree(forw_packet_aggr); +out_nomem: + if (!own_packet) + atomic_inc(&bat_priv->batman_queue_left); +out_free_outgoing: batadv_hardif_free_ref(if_outgoing); out_free_incoming: batadv_hardif_free_ref(if_incoming);