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batman-adv: Decrease hardif refcnt on fragmentation send error 

An error before the hardif is found has to free the skb. But every error
after that has to free the skb + put the hard interface.

Fixes: 8def0be82d ("batman-adv: Consume skb in batadv_frag_send_packet")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
This commit is contained in:
Sven Eckelmann 2016-12-27 08:51:17 +01:00 committed by Simon Wunderlich
parent 7ce7d89f48
commit 4ea33ef0f9
1 changed files with 5 additions and 5 deletions
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10
net/batman-adv/fragmentation.c
View File

@ -474,7 +474,7 @@ int batadv_frag_send_packet(struct sk_buff *skb,
primary_if = batadv_primary_if_get_selected(bat_priv);
if (!primary_if) {
ret = -EINVAL;
goto put_primary_if;
goto free_skb;
}
/* Create one header to be copied to all fragments */
@ -502,7 +502,7 @@ int batadv_frag_send_packet(struct sk_buff *skb,
skb_fragment = batadv_frag_create(skb, &frag_header, mtu);
if (!skb_fragment) {
ret = -ENOMEM;
goto free_skb;
goto put_primary_if;
}
batadv_inc_counter(bat_priv, BATADV_CNT_FRAG_TX);
@ -511,7 +511,7 @@ int batadv_frag_send_packet(struct sk_buff *skb,
ret = batadv_send_unicast_skb(skb_fragment, neigh_node);
if (ret != NET_XMIT_SUCCESS) {
ret = NET_XMIT_DROP;
goto free_skb;
goto put_primary_if;
}
frag_header.no++;
@ -519,7 +519,7 @@ int batadv_frag_send_packet(struct sk_buff *skb,
/* The initial check in this function should cover this case */
if (frag_header.no == BATADV_FRAG_MAX_FRAGMENTS - 1) {
ret = -EINVAL;
goto free_skb;
goto put_primary_if;
}
}
@ -527,7 +527,7 @@ int batadv_frag_send_packet(struct sk_buff *skb,
if (batadv_skb_head_push(skb, header_size) < 0 ||
pskb_expand_head(skb, header_size + ETH_HLEN, 0, GFP_ATOMIC) < 0) {
ret = -ENOMEM;
goto free_skb;
goto put_primary_if;
}
memcpy(skb->data, &frag_header, header_size);