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| author | Alan Stern <stern@rowland.harvard.edu> | 2009-09-01 11:39:22 -0400 |
|---|---|---|
| committer | Live-CD User <linux@linux.site> | 2009-09-19 13:13:40 -0700 |
| commit | 7e29bb4b779f4f35385e6f21994758845bf14d23 (patch) | |
| tree | 393c102e66ad3bba2b5d27d88770b57ab23a2606 | |
| parent | cc56cd0157753c04a987888a2f793803df661a40 (diff) | |
| download | linux-3.10-7e29bb4b779f4f35385e6f21994758845bf14d23.tar.gz linux-3.10-7e29bb4b779f4f35385e6f21994758845bf14d23.tar.bz2 linux-3.10-7e29bb4b779f4f35385e6f21994758845bf14d23.zip | |
usb-serial: fix termios initialization logic
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@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/usb/serial/usb-serial.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 7d207d91a6a..1bc0a24b896 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -210,22 +210,21 @@ 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; - /* 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) */ @@ -234,9 +233,8 @@ static int serial_install(struct tty_driver *driver, struct tty_struct *tty) 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: |