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Commit 41ff9142 authored by Ernst Martin Witte's avatar Ernst Martin Witte Committed by Mauro Carvalho Chehab
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[media] ts2020: cancel_delayed_work_sync before device removal / kfree 



ts2020_remove  was  calling  kfree(dev)  with  possibly  still  active
schedule_delayed_work(dev->stat_work).  A similar bug in si2157 caused
kernel panics in call_timer_fn e.g. after rmmod cx23885.

Signed-off-by: default avatarErnst Martin Witte <emw-linux-kernel@nocabal.de>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent 4fd57ed6

drivers/media/dvb-frontends/ts2020.c

+4 −0
Original line number Diff line number Diff line
@@ -712,6 +712,10 @@ static int ts2020_remove(struct i2c_client *client) 


	dev_dbg(&client->dev, "\n");



	/* stop statistics polling */

	if (!dev->dont_poll)

		cancel_delayed_work_sync(&dev->stat_work);



	regmap_exit(dev->regmap);

	kfree(dev);

	return 0;