Commit 6b3cc1db authored by Simon Fels's avatar Simon Fels Committed by Marcel Holtmann

Bluetooth: close HCI device when user channel socket gets closed

With 9380f9ea the order of unsetting
the HCI_USER_CHANNEL flag of the HCI device was reverted to ensure
the device is first closed before making it available again.

Due to hci_dev_close checking for HCI_USER_CHANNEL being set on the
device it was never really closed and was kept opened. We're now
calling hci_dev_do_close directly to make sure the device is correctly
closed and we keep the correct order to unset the flag on our device
object.
Signed-off-by: default avatarSimon Fels <simon.fels@canonical.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 1b197574
......@@ -987,6 +987,7 @@ int hci_resume_dev(struct hci_dev *hdev);
int hci_reset_dev(struct hci_dev *hdev);
int hci_dev_open(__u16 dev);
int hci_dev_close(__u16 dev);
int hci_dev_do_close(struct hci_dev *hdev);
int hci_dev_reset(__u16 dev);
int hci_dev_reset_stat(__u16 dev);
int hci_dev_cmd(unsigned int cmd, void __user *arg);
......
......@@ -1549,7 +1549,7 @@ static void hci_pend_le_actions_clear(struct hci_dev *hdev)
BT_DBG("All LE pending actions cleared");
}
static int hci_dev_do_close(struct hci_dev *hdev)
int hci_dev_do_close(struct hci_dev *hdev)
{
BT_DBG("%s %p", hdev->name, hdev);
......
......@@ -503,7 +503,16 @@ static int hci_sock_release(struct socket *sock)
if (hdev) {
if (hci_pi(sk)->channel == HCI_CHANNEL_USER) {
hci_dev_close(hdev->id);
/* When releasing an user channel exclusive access,
* call hci_dev_do_close directly instead of calling
* hci_dev_close to ensure the exclusive access will
* be released and the controller brought back down.
*
* The checking of HCI_AUTO_OFF is not needed in this
* case since it will have been cleared already when
* opening the user channel.
*/
hci_dev_do_close(hdev);
hci_dev_clear_flag(hdev, HCI_USER_CHANNEL);
mgmt_index_added(hdev);
}
......
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