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authorAlan Stern <stern@rowland.harvard.edu>2009-09-01 11:39:22 -0400
committerLive-CD User <linux@linux.site>2009-09-19 13:13:40 -0700
commit7e29bb4b779f4f35385e6f21994758845bf14d23 (patch)
tree393c102e66ad3bba2b5d27d88770b57ab23a2606 /drivers/usb/serial/usb-serial.c
parentcc56cd0157753c04a987888a2f793803df661a40 (diff)
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>
Diffstat (limited to 'drivers/usb/serial/usb-serial.c')
-rw-r--r--drivers/usb/serial/usb-serial.c22
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: