From: Alexander Aring <alex.aring@gmail.com>
Date: Sat, 13 Jun 2015 20:15:52 +0000 (+0200)
Subject: mac802154: iface: flush workqueue before stop
X-Git-Tag: v4.9.8~4072^2~29^2~43
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ed2e627cb17d385f02d0a28fd7e564031f7769b0;p=platform%2Fkernel%2Flinux-rpi3.git

mac802154: iface: flush workqueue before stop

This patch flushs the workqueue which is currently used for xmit_sync
callback before calling stop driver-ops. Flush the queue will ensure all
pending tx frames are transmitted.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---

diff --git a/net/mac802154/iface.c b/net/mac802154/iface.c
index d804337..692731d 100644
--- a/net/mac802154/iface.c
+++ b/net/mac802154/iface.c
@@ -308,6 +308,7 @@ static int mac802154_slave_close(struct net_device *dev)
 	clear_bit(SDATA_STATE_RUNNING, &sdata->state);
 
 	if (!local->open_count) {
+		flush_workqueue(local->workqueue);
 		hrtimer_cancel(&local->ifs_timer);
 		drv_stop(local);
 	}