Bluetooth: Fix clearing flags on power off before notifying mgmt
When powering off the device the hdev->flags and hdev->dev_flags need to
be cleared before calling mgmt_powered(). If this is not done the
resulting events sent to user space may contain incorrect values.
Note that the HCI_AUTO_OFF flag accessed right after this is part of the
persistent flags, so it's unchanged by the hdev->dev_flags reset.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 059bbae..9e87a91 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1130,6 +1130,10 @@
* and no tasks are scheduled. */
hdev->close(hdev);
+ /* Clear flags */
+ hdev->flags = 0;
+ hdev->dev_flags &= ~HCI_PERSISTENT_MASK;
+
if (!test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags) &&
mgmt_valid_hdev(hdev)) {
hci_dev_lock(hdev);
@@ -1137,10 +1141,6 @@
hci_dev_unlock(hdev);
}
- /* Clear flags */
- hdev->flags = 0;
- hdev->dev_flags &= ~HCI_PERSISTENT_MASK;
-
/* Controller radio is available but is currently powered down */
hdev->amp_status = 0;