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    Subject[PATCH 4.9 017/134] Bluetooth: drop HCI device reference before return
    Date
    From: Pan Bian <bianpan2016@163.com>

    [ Upstream commit 5a3ef03afe7e12982dc3b978f4c5077c907f7501 ]

    Call hci_dev_put() to decrement reference count of HCI device hdev if
    fails to duplicate memory.

    Fixes: 0b26ab9dce74 ("Bluetooth: AMP: Handle Accept phylink command status evt")
    Signed-off-by: Pan Bian <bianpan2016@163.com>
    Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    net/bluetooth/a2mp.c | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
    index 242ef2abd0911..fcd819ffda108 100644
    --- a/net/bluetooth/a2mp.c
    +++ b/net/bluetooth/a2mp.c
    @@ -519,6 +519,7 @@ static int a2mp_createphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
    assoc = kmemdup(req->amp_assoc, assoc_len, GFP_KERNEL);
    if (!assoc) {
    amp_ctrl_put(ctrl);
    + hci_dev_put(hdev);
    return -ENOMEM;
    }

    --
    2.27.0


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