diff options
| author | Ronald Tschalär <[email protected]> | 2017-10-25 22:15:19 -0700 |
|---|---|---|
| committer | Marcel Holtmann <[email protected]> | 2017-10-30 15:48:32 +0100 |
| commit | 0338b1b393ec7910898e8f7b25b3bf31a7282e16 (patch) | |
| tree | a72e920fd7572388e6a16aec289de034f9c001bb /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | 459232fc0e2505d489e2dc3befc1ad01dcdccb47 (diff) | |
Bluetooth: hci_ldisc: Fix another race when closing the tty.
The following race condition still existed:
P1 P2
cancel_work_sync()
hci_uart_tx_wakeup()
hci_uart_write_work()
hci_uart_dequeue()
clear_bit(HCI_UART_PROTO_READY)
hci_unregister_dev(hdev)
hci_free_dev(hdev)
hu->proto->close(hu)
kfree(hu)
access to hdev and hu
Cancelling the work after clearing the HCI_UART_PROTO_READY bit avoids
this as any hci_uart_tx_wakeup() issued after the flag is cleared will
detect that and not schedule further work.
Signed-off-by: Ronald Tschalär <[email protected]>
Reviewed-by: Lukas Wunner <[email protected]>
Signed-off-by: Marcel Holtmann <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions