diff options
| author | Peter Hurley <peter@hurleysoftware.com> | 2016-04-09 17:53:25 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-04-30 09:26:55 -0700 |
| commit | d41861ca19c9e96f12a4f1ebbc8255d00909a232 (patch) | |
| tree | 4b09c15500d404b0b375469dd673f0bc8fd05f5f /drivers/usb/serial/usb_wwan.c | |
| parent | 80f02d5424301bf4df195d09b1a664f394435851 (diff) | |
tty: Replace ASYNC_INITIALIZED bit and update atomically
Replace ASYNC_INITIALIZED bit in the tty_port::flags field with
TTY_PORT_INITIALIZED bit in the tty_port::iflags field. Introduce helpers
tty_port_set_initialized() and tty_port_initialized() to abstract
atomic bit ops.
Note: the transforms for test_and_set_bit() and test_and_clear_bit()
are unnecessary as the state transitions are already mutually exclusive;
the tty lock prevents concurrent open/close/hangup.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/serial/usb_wwan.c')
| -rw-r--r-- | drivers/usb/serial/usb_wwan.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c index be9cb61b4d19..3dfdfc81254b 100644 --- a/drivers/usb/serial/usb_wwan.c +++ b/drivers/usb/serial/usb_wwan.c @@ -464,7 +464,7 @@ void usb_wwan_close(struct usb_serial_port *port) /* * Need to take susp_lock to make sure port is not already being - * resumed, but no need to hold it due to ASYNC_INITIALIZED. + * resumed, but no need to hold it due to initialized */ spin_lock_irq(&intfdata->susp_lock); if (--intfdata->open_ports == 0) @@ -682,7 +682,7 @@ int usb_wwan_resume(struct usb_serial *serial) for (i = 0; i < serial->num_ports; i++) { port = serial->port[i]; - if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags)) + if (!tty_port_initialized(&port->port)) continue; portdata = usb_get_serial_port_data(port); |