Messages in this thread Patch in this message | | | Date | Thu, 01 Oct 2009 18:16:32 -0700 | From | Greg KH <> | Subject | [044/136] USB: fix cdc-acm regression in open |
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2.6.31-stable review patch. If anyone has any objections, please let us know.
------------------ From: Oliver Neukum <oliver@neukum.org>
commit 7af25b4b34a2439020d78da765a3bed0ff73f25c upstream.
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> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/usb/class/cdc-acm.c | 2 ++ 1 file changed, 2 insertions(+)
--- 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_struc 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);
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