Commit 308fee18 authored May 26, 2014 by Johan Hovold Committed by Greg Kroah-Hartman May 27, 2014

USB: cdc-acm: remove redundant usb_mark_last_busy



There's no need to call usb_mark_last_busy after having increased the PM
counter in write(). The device will be marked busy by USB core when the
PM counter is balanced in the completion handler.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 4a8ee505

drivers/usb/class/cdc-acm.c

+0 −1

Original line number	Diff line number	Diff line
		@@ -690,7 +690,6 @@ static int acm_tty_write(struct tty_struct *tty,
		spin_unlock_irqrestore(&acm->write_lock, flags);
		return count;
		}
		usb_mark_last_busy(acm->dev);

		stat = acm_start_wb(acm, wb);
		spin_unlock_irqrestore(&acm->write_lock, flags);