From 4a8ee5059a241114c644350b6cb564c729a340fa Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 26 May 2014 19:23:49 +0200 Subject: [PATCH] USB: cdc-acm: do not update PM busy on read errors There's no need to update the runtime PM last_busy field on read urb errors (e.g. when the urb is being killed on shutdown). Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-acm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index f038f390db97..3c7cfac48e30 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -416,13 +416,15 @@ static void acm_read_bulk_callback(struct urb *urb) dev_dbg(&acm->data->dev, "%s - disconnected\n", __func__); return; } - usb_mark_last_busy(acm->dev); if (urb->status) { dev_dbg(&acm->data->dev, "%s - non-zero urb status: %d\n", __func__, urb->status); return; } + + usb_mark_last_busy(acm->dev); + acm_process_read_urb(acm, urb); /* throttle device if requested by tty */ -- 2.20.1