Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 7af25b4b authored by Oliver Neukum's avatar Oliver Neukum Committed by Greg Kroah-Hartman
Browse files

USB: fix cdc-acm regression in open 



cdc-acm needs to set a flag during open to tell the
tty layer that the device is initialized

Signed-off-by: default avatarOliver Neukum <oliver@neukum.org>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Paul Martin <pm@debian.org>
Cc: stable <stable@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 7f1dc313

drivers/usb/class/cdc-acm.c

+2 −0
Original line number Diff line number Diff line
@@ -59,6 +59,7 @@ 
#include <linux/init.h>

#include <linux/slab.h>

#include <linux/tty.h>

#include <linux/serial.h>

#include <linux/tty_driver.h>

#include <linux/tty_flip.h>

#include <linux/module.h>
@@ -609,6 +610,7 @@ static int acm_tty_open(struct tty_struct *tty, struct file *filp) 
	acm->throttle = 0;



	tasklet_schedule(&acm->urb_task);

	set_bit(ASYNCB_INITIALIZED, &acm->port.flags);

	rv = tty_port_block_til_ready(&acm->port, tty, filp);

done:

	mutex_unlock(&acm->mutex);