acm_submit_read_urbs
if (acm_submit_read_urbs(acm, GFP_KERNEL))
rv = acm_submit_read_urbs(acm, GFP_ATOMIC);
acm_submit_read_urbs(acm, GFP_KERNEL);
retval = acm_submit_read_urbs(acm, GFP_KERNEL);
if (acm_submit_read_urbs(acm, GFP_KERNEL))
acm_submit_read_urbs(acm, GFP_KERNEL);