USB: tty: kill request_room for USB ACM class

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index b97f930..975d556 100644 (file)
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -428,7 +428,6 @@ next_buffer:
                throttled = acm->throttle;
                spin_unlock_irqrestore(&acm->throttle_lock, flags);
                if (!throttled) {
-                       tty_buffer_request_room(tty, buf->size);
                        tty_insert_flip_string(tty, buf->base, buf->size);
                        tty_flip_buffer_push(tty);
                } else {