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cdc-acm: ensure that termios get set when the port is activated

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The driver wasn't properly configuring the hardware for the current
termios settings under all conditions.  Ensure that termios are
written to the device when the port is activated.

Signed-off-by: Jim Paris <jim@jtan.com>
Reviewed-by: Johan Hovold <johan@kernel.org>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jim Paris 2014-10-30 11:04:47 -04:00 committed by Greg Kroah-Hartman
parent cf84a691a6
commit 24cb4502c9
1 changed files with 5 additions and 0 deletions
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5
drivers/usb/class/cdc-acm.c
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@ -60,6 +60,9 @@ static struct acm *acm_table[ACM_TTY_MINORS];
static DEFINE_MUTEX(acm_table_lock);
static void acm_tty_set_termios(struct tty_struct *tty,
struct ktermios *termios_old);
/*
* acm_table accessors
*/
@ -554,6 +557,8 @@ static int acm_port_activate(struct tty_port *port, struct tty_struct *tty)
goto error_submit_urb;
}
acm_tty_set_termios(tty, NULL);
/*
* Unthrottle device in case the TTY was closed while throttled.
*/