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Bluetooth: Introduce a new HCI_RFKILLED flag

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This makes it more convenient to check for rfkill (no need to check for
dev->rfkill before calling rfkill_blocked()) and also avoids potential
races if the RFKILL state needs to be checked from within the rfkill
callback.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Cc: stable@vger.kernel.org
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
This commit is contained in:
Johan Hedberg
2013-09-13 08:58:17 +03:00
committed by Gustavo Padovan
parent 330b6c1521
commit 5e130367d4
2 changed files with 11 additions and 5 deletions
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15
net/bluetooth/hci_core.c
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@@ -1146,7 +1146,7 @@ int hci_dev_open(__u16 dev)
goto done;
}
if (hdev->rfkill && rfkill_blocked(hdev->rfkill)) {
if (test_bit(HCI_RFKILLED, &hdev->dev_flags)) {
ret = -ERFKILL;
goto done;
}
@@ -1566,10 +1566,12 @@ static int hci_rfkill_set_block(void *data, bool blocked)
BT_DBG("%p name %s blocked %d", hdev, hdev->name, blocked);
if (!blocked)
return 0;
hci_dev_do_close(hdev);
if (blocked) {
set_bit(HCI_RFKILLED, &hdev->dev_flags);
hci_dev_do_close(hdev);
} else {
clear_bit(HCI_RFKILLED, &hdev->dev_flags);
}
return 0;
}
@@ -2209,6 +2211,9 @@ int hci_register_dev(struct hci_dev *hdev)
}
}
if (hdev->rfkill && rfkill_blocked(hdev->rfkill))
set_bit(HCI_RFKILLED, &hdev->dev_flags);
set_bit(HCI_SETUP, &hdev->dev_flags);
if (hdev->dev_type != HCI_AMP)