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authorJohan Hedberg <johan.hedberg@intel.com>2013-09-13 08:58:17 +0300
committerGustavo Padovan <gustavo.padovan@collabora.co.uk>2013-09-18 12:37:27 -0500
commit5e130367d43ff22836bbae380d197d600fe8ddbb (patch)
treefa0633ce5e70d90a935f44f94a197dd7d5fae3f1 /net
parent330b6c1521d76d8b88513fbafe18709ad86dafc4 (diff)
downloadlinux-linaro-stable-5e130367d43ff22836bbae380d197d600fe8ddbb.tar.gz
Bluetooth: Introduce a new HCI_RFKILLED flag
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>
Diffstat (limited to 'net')
-rw-r--r--net/bluetooth/hci_core.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 634debab4d54..0d5bc246b607 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -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)