diff options
| author | Oliver Neukum <oliver@neukum.org> | 2009-09-08 23:51:28 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-09-23 15:46:16 +0200 |
| commit | 7af25b4b34a2439020d78da765a3bed0ff73f25c (patch) | |
| tree | 2a4a62760bf8e233f421e0b724a277e6391c5038 /drivers/usb | |
| parent | USB: CDC WDM driver doesn't support non-blocking reads (diff) | |
| download | linux-7af25b4b34a2439020d78da765a3bed0ff73f25c.tar.xz linux-7af25b4b34a2439020d78da765a3bed0ff73f25c.zip | |
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/usb')
| -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 85a1a55815cf..e3861b21e776 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); |