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Bluetooth: Add missing hci_dev locking when calling mgmt functions

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Now that the pending commands are within struct hci_dev we can properly
control access to them throught the hci_dev locking mechanism.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Johan Hedberg
2011-11-08 20:40:16 +02:00
committed by Gustavo F. Padovan
parent 2e58ef3e11
commit 56e5cb86eb
3 changed files with 59 additions and 15 deletions
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12
net/bluetooth/hci_core.c
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@@ -549,8 +549,11 @@ int hci_dev_open(__u16 dev)
hci_dev_hold(hdev);
set_bit(HCI_UP, &hdev->flags);
hci_notify(hdev, HCI_DEV_UP);
if (!test_bit(HCI_SETUP, &hdev->flags))
if (!test_bit(HCI_SETUP, &hdev->flags)) {
hci_dev_lock_bh(hdev);
mgmt_powered(hdev, 1);
hci_dev_unlock_bh(hdev);
}
} else {
/* Init failed, cleanup */
tasklet_kill(&hdev->rx_task);
@@ -642,7 +645,9 @@ static int hci_dev_do_close(struct hci_dev *hdev)
* and no tasks are scheduled. */
hdev->close(hdev);
hci_dev_lock_bh(hdev);
mgmt_powered(hdev, 0);
hci_dev_unlock_bh(hdev);
/* Clear flags */
hdev->flags = 0;
@@ -1561,8 +1566,11 @@ void hci_unregister_dev(struct hci_dev *hdev)
kfree_skb(hdev->reassembly[i]);
if (!test_bit(HCI_INIT, &hdev->flags) &&
!test_bit(HCI_SETUP, &hdev->flags))
!test_bit(HCI_SETUP, &hdev->flags)) {
hci_dev_lock_bh(hdev);
mgmt_index_removed(hdev);
hci_dev_unlock_bh(hdev);
}
/* mgmt_index_removed should take care of emptying the
* pending list */