aboutsummaryrefslogtreecommitdiff
path: root/net/ieee802154
diff options
context:
space:
mode:
authoralex.bluesman.smirnov@gmail.com <alex.bluesman.smirnov@gmail.com>2011-09-01 03:55:15 +0000
committerDavid S. Miller <davem@davemloft.net>2011-09-15 15:36:35 -0400
commitdcef1151804257684f65c779fc1c19836ee0196a (patch)
treee0371cd545ecc0afa191249aab06db64e2e0742b /net/ieee802154
parentfa3df928e0878350ab0ddd1453bb85b056c726da (diff)
downloadlinux-dcef1151804257684f65c779fc1c19836ee0196a.tar.gz
6LoWPAN: fix skb_copy call
This patch fixes 2 issues in lowpan_skb_deliver function: 1. Check for return status of skb_copy call; 2. Use skb_copy with proper GFP flag, drop check for non-interrupt context. Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ieee802154')
-rw-r--r--net/ieee802154/6lowpan.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index f0d15365722..19d6aefe97d 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -479,10 +479,10 @@ static int lowpan_skb_deliver(struct sk_buff *skb, struct ipv6hdr *hdr)
int stat = NET_RX_SUCCESS;
new = skb_copy_expand(skb, sizeof(struct ipv6hdr), skb_tailroom(skb),
- GFP_KERNEL);
+ GFP_ATOMIC);
kfree_skb(skb);
- if (NULL == new)
+ if (!new)
return -ENOMEM;
skb_push(new, sizeof(struct ipv6hdr));
@@ -495,13 +495,14 @@ static int lowpan_skb_deliver(struct sk_buff *skb, struct ipv6hdr *hdr)
rcu_read_lock();
list_for_each_entry_rcu(entry, &lowpan_devices, list)
if (lowpan_dev_info(entry->ldev)->real_dev == new->dev) {
- skb = skb_copy(new, GFP_KERNEL);
- skb->dev = entry->ldev;
+ skb = skb_copy(new, GFP_ATOMIC);
+ if (!skb) {
+ stat = -ENOMEM;
+ break;
+ }
- if (in_interrupt())
- stat = netif_rx(skb);
- else
- stat = netif_rx_ni(skb);
+ skb->dev = entry->ldev;
+ stat = netif_rx(skb);
}
rcu_read_unlock();