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authorDavid S. Miller <davem@davemloft.net>2017-08-15 20:23:23 -0700
committerDavid S. Miller <davem@davemloft.net>2017-08-15 20:23:23 -0700
commit463910e2dff580e4e9a678af710b4818b5189691 (patch)
tree21b4e53cdbec7e5a537ddfc1598fbf17deae57e2 /net/dsa
parent22cb7a3ac380ecaab6837670963813599b123a53 (diff)
parent510c8a899caf095cb13d09d203573deef15db2fe (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'net/dsa')
-rw-r--r--net/dsa/tag_ksz.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/net/dsa/tag_ksz.c b/net/dsa/tag_ksz.c
index fab41de8e983..de66ca8e6201 100644
--- a/net/dsa/tag_ksz.c
+++ b/net/dsa/tag_ksz.c
@@ -42,6 +42,9 @@ static struct sk_buff *ksz_xmit(struct sk_buff *skb, struct net_device *dev)
padlen = (skb->len >= ETH_ZLEN) ? 0 : ETH_ZLEN - skb->len;
if (skb_tailroom(skb) >= padlen + KSZ_INGRESS_TAG_LEN) {
+ if (skb_put_padto(skb, skb->len + padlen))
+ return NULL;
+
nskb = skb;
} else {
nskb = alloc_skb(NET_IP_ALIGN + skb->len +
@@ -56,13 +59,15 @@ static struct sk_buff *ksz_xmit(struct sk_buff *skb, struct net_device *dev)
skb_set_transport_header(nskb,
skb_transport_header(skb) - skb->head);
skb_copy_and_csum_dev(skb, skb_put(nskb, skb->len));
+
+ if (skb_put_padto(nskb, nskb->len + padlen)) {
+ kfree_skb(nskb);
+ return NULL;
+ }
+
kfree_skb(skb);
}
- /* skb is freed when it fails */
- if (skb_put_padto(nskb, nskb->len + padlen))
- return NULL;
-
tag = skb_put(nskb, KSZ_INGRESS_TAG_LEN);
tag[0] = 0;
tag[1] = 1 << p->dp->index; /* destination port */