diff options
| author | Oliver Neukum <oliver@neukum.org> | 2009-09-08 23:51:28 +0200 |
|---|---|---|
| committer | Lily Zhang <r58066@freescale.com> | 2010-08-09 12:42:57 +0800 |
| commit | fa724320421c9943e15bd313ec9c7630735bd70b (patch) | |
| tree | d17b1beda930b11e5499df3e8ef044ea1dc0edf8 /drivers | |
| parent | 44cf688623f4179d1f7160b2642861e605222fe7 (diff) | |
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: Oliver Neukum <oliver@neukum.org>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Paul Martin <pm@debian.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/class/cdc-acm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 2bfc41ece0e1..b8134ad5f05f 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -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); |