linux-kernel - [PATCH 3/4] Bluetooth: hci_ldisc: don't release resources in hci_uart_init

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Date:   Fri, 19 Aug 2016 09:38:46 +0200
From:   Boris Brezillon <boris.brezillon@...e-electrons.com>
To:     Marcel Holtmann <marcel@...tmann.org>,
        Gustavo Padovan <gustavo@...ovan.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        linux-bluetooth@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, jason.abele@...il.com,
        Boris Brezillon <boris.brezillon@...e-electrons.com>
Subject: [PATCH 3/4] Bluetooth: hci_ldisc: don't release resources in hci_uart_init_work()

This is done in hci_uart_tty_close() and can lead to double cleanup if
proto->close() is not tracking the closed/open state.

Signed-off-by: Boris Brezillon <boris.brezillon@...e-electrons.com>
---
 drivers/bluetooth/hci_ldisc.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index de7f7f1f995c..27f73294edcb 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -190,9 +190,7 @@ static void hci_uart_init_work(struct work_struct *work)
 	err = hci_register_dev(hu->hdev);
 	if (err < 0) {
 		BT_ERR("Can't register HCI device");
-		hci_free_dev(hu->hdev);
-		hu->hdev = NULL;
-		hu->proto->close(hu);
+		return;
 	}
 
 	set_bit(HCI_UART_REGISTERED, &hu->flags);
-- 
2.7.4