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USB: serial, use tty_standard_install

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But before that we need to reorder the calls so that we don't need to
lower the reference counts if usb_autopm_get_interface fails.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby 2012-01-30 21:14:29 +01:00 committed by Greg Kroah-Hartman
parent 66d450e84e
commit 76f82a7ab3
1 changed files with 6 additions and 10 deletions
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16
drivers/usb/serial/usb-serial.c
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@ -214,15 +214,14 @@ static int serial_install(struct tty_driver *driver, struct tty_struct *tty)
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;
retval = tty_standard_install(driver, tty);
if (retval)
goto error_init_termios;
mutex_unlock(&serial->disc_mutex);
/* allow the driver to update the settings */
@ -231,14 +230,11 @@ static int serial_install(struct tty_driver *driver, struct tty_struct *tty)
tty->driver_data = port;
/* Final install (we use the default method) */
tty_driver_kref_get(driver);
tty->count++;
driver->ttys[idx] = tty;
return retval;
error_get_interface:
error_init_termios:
usb_autopm_put_interface(serial->interface);
error_get_interface:
module_put(serial->type->driver.owner);
error_module_get:
error_no_port: