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USB: cdc-acm: remove redundant usb_mark_last_busy

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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>
This commit is contained in:
Johan Hovold 2014-05-26 19:23:50 +02:00 committed by Greg Kroah-Hartman
parent 4a8ee5059a
commit 308fee18e0
1 changed files with 0 additions and 1 deletions
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1
drivers/usb/class/cdc-acm.c
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@ -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);