From: Henry Gebhardt <gebhardt@xxxxxxxxxxxxxxxxxxxxxx> If acm_rx_tasklet() gets called before tty_port_block_til_ready() returns, then bulk IN urbs may not be sent. This fixes it. Signed-off-by: Henry Gebhardt <gebhardt@xxxxxxxxxxxxxxxxxxxxxx> Acked-by: Oliver Neukum <oliver@xxxxxxxxxx> Cc: stable <stable@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx> --- drivers/usb/class/cdc-acm.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index e3861b2..b72fa49 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -609,9 +609,9 @@ 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); + tasklet_schedule(&acm->urb_task); done: mutex_unlock(&acm->mutex); err_out: -- 1.6.4.2 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
