redonkable/remarkable-linux
redonkable/remarkable-linux
1
0
Fork 0
Code Releases Activity

Bluetooth: Fix cancel_delayed_work_sync usage with locks

Browse source 
The cancel_delayed_work_sync function should not be used if we hold any
locks. Luckily all places where this is the case it is also safe to use
the non-sync version.

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 2011-11-09 01:44:22 +02:00 committed by Gustavo F. Padovan
parent 56e5cb86eb
commit e0f9309f37
2 changed files with 5 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
net/bluetooth/hci_core.c
View file

@ -599,12 +599,12 @@ static int hci_dev_do_close(struct hci_dev *hdev)
tasklet_kill(&hdev->tx_task);
if (hdev->discov_timeout > 0) {
cancel_delayed_work_sync(&hdev->discov_off);
cancel_delayed_work(&hdev->discov_off);
hdev->discov_timeout = 0;
}
if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->flags))
cancel_delayed_work_sync(&hdev->power_off);
cancel_delayed_work(&hdev->power_off);
hci_dev_lock_bh(hdev);
inquiry_cache_flush(hdev);
@ -828,7 +828,7 @@ int hci_get_dev_list(void __user *arg)
read_lock_bh(&hci_dev_list_lock);
list_for_each_entry(hdev, &hci_dev_list, list) {
if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->flags))
cancel_delayed_work_sync(&hdev->power_off);
cancel_delayed_work(&hdev->power_off);
if (!test_bit(HCI_MGMT, &hdev->flags))
set_bit(HCI_PAIRABLE, &hdev->flags);

4
net/bluetooth/mgmt.c
View file

@ -149,7 +149,7 @@ static int read_index_list(struct sock *sk)
i = 0;
list_for_each_entry(d, &hci_dev_list, list) {
if (test_and_clear_bit(HCI_AUTO_OFF, &d->flags))
cancel_delayed_work_sync(&d->power_off);
cancel_delayed_work(&d->power_off);
if (test_bit(HCI_SETUP, &d->flags))
continue;
@ -398,7 +398,7 @@ static int set_discoverable(struct sock *sk, u16 index, unsigned char *data,
if (cp->val)
scan |= SCAN_INQUIRY;
else
cancel_delayed_work_sync(&hdev->discov_off);
cancel_delayed_work(&hdev->discov_off);
err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
if (err < 0)