[PATCH v4-real] cdc-acm: ensure that termios get set when the port is activated

[Jim Paris]

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@xxxxxxxx>
---

Johan Hovold wrote:
> On Thu, Oct 30, 2014 at 10:45:38AM -0400, Jim Paris wrote:
> > Moved prototype.
> 
> You seem to have posted the old version again.

Doh.  Fixed.

Jim

---
 drivers/usb/class/cdc-acm.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index e934e19f49f5..6c358c5e05ab 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -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.
 	 */
-- 
2.1.0

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