From: Johan Hedberg Date: Fri, 15 Mar 2013 22:06:59 +0000 (-0500) Subject: Bluetooth: Fix clearing flags on power off before notifying mgmt X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=35b973c9dd6d518491b251ac777d767d7820aa37;p=linux-beck.git 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 Acked-by: Marcel Holtmann Signed-off-by: Gustavo Padovan --- diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 059bbae534d1..9e87a91562a6 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -1130,6 +1130,10 @@ static int hci_dev_do_close(struct hci_dev *hdev) * 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 @@ static int hci_dev_do_close(struct hci_dev *hdev) 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;