This patch (as1288) fixes the initialization logic in
serial_install(). A new tty always needs to have a termios
initialized no matter what, not just in the case where the lower
driver will override the termios settings.
Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
---
Index: usb-2.6/drivers/usb/serial/usb-serial.c
===================================================================
--- usb-2.6.orig/drivers/usb/serial/usb-serial.c
+++ usb-2.6/drivers/usb/serial/usb-serial.c
@@ -211,22 +211,21 @@ static int serial_install(struct tty_dri
if (!try_module_get(serial->type->driver.owner))
goto error_module_get;
+ /* perform the standard setup */
+ retval = tty_init_termios(tty);
+ if (retval)
+ goto error_init_termios;
+
retval = usb_autopm_get_interface(serial->interface);
if (retval)
goto error_get_interface;
- /* If the termios setup has yet to be done */
- if (tty->driver->termios[idx] == NULL) {
- /* perform the standard setup */
- retval = tty_init_termios(tty);
- if (retval)
- goto error_init_termios;
- /* allow the driver to update it */
- if (serial->type->init_termios)
- serial->type->init_termios(tty);
- }
mutex_unlock(&serial->disc_mutex);
+ /* allow the driver to update the settings */
+ if (serial->type->init_termios)
+ serial->type->init_termios(tty);
+
tty->driver_data = port;
/* Final install (we use the default method) */
@@ -235,9 +234,8 @@ static int serial_install(struct tty_dri
driver->ttys[idx] = tty;
return retval;
- error_init_termios:
- usb_autopm_put_interface(serial->interface);
error_get_interface:
+ error_init_termios:
module_put(serial->type->driver.owner);
error_module_get:
error_no_port:
--
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