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Bluetooth: btqcomsmd: Fix skb double free corruption 

In case of hci send frame failure, skb is still owned
by the caller (hci_core) and then should not be freed.

This fixes crash on dragonboard-410c when sending SCO
packet. skb is freed by both btqcomsmd and hci_core.

Fixes: 1511cc750c ("Bluetooth: Introduce Qualcomm WCNSS SMD based HCI driver")
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
hifive-unleashed-5.1
Loic Poulain 2017-11-22 15:03:17 +01:00 committed by Marcel Holtmann
parent d73e172816
commit 67b8fbead4
1 changed files with 2 additions and 1 deletions
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3
drivers/bluetooth/btqcomsmd.c
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@ -88,7 +88,8 @@ static int btqcomsmd_send(struct hci_dev *hdev, struct sk_buff *skb)
break;
}
kfree_skb(skb);
if (!ret)
kfree_skb(skb);
return ret;
}