be2net: Fix skb double free in be_xmit_wrokarounds() failure path
skb_padto(), skb_share_check() and __vlan_put_tag() routines free skb when they return an error. This patch fixes be_xmit_workarounds() to not free skb again in such cases. Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com> Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Родитель
7ad09458a5
Коммит
c912895106
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@ -927,7 +927,7 @@ static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter,
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*/
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*/
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if (unlikely(!BEx_chip(adapter) && skb->len <= 32)) {
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if (unlikely(!BEx_chip(adapter) && skb->len <= 32)) {
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if (skb_padto(skb, 36))
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if (skb_padto(skb, 36))
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goto tx_drop;
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goto err;
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skb->len = 36;
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skb->len = 36;
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}
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}
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@ -959,7 +959,7 @@ static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter,
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vlan_tx_tag_present(skb)) {
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vlan_tx_tag_present(skb)) {
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skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
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skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
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if (unlikely(!skb))
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if (unlikely(!skb))
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goto tx_drop;
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goto err;
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}
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}
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/* HW may lockup when VLAN HW tagging is requested on
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/* HW may lockup when VLAN HW tagging is requested on
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@ -981,12 +981,13 @@ static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter,
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be_vlan_tag_tx_chk(adapter, skb)) {
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be_vlan_tag_tx_chk(adapter, skb)) {
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skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
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skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
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if (unlikely(!skb))
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if (unlikely(!skb))
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goto tx_drop;
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goto err;
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}
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}
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return skb;
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return skb;
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tx_drop:
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tx_drop:
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dev_kfree_skb_any(skb);
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dev_kfree_skb_any(skb);
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err:
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return NULL;
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return NULL;
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}
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}
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