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Commit 4fd57ed6 authored by Ernst Martin Witte's avatar Ernst Martin Witte Committed by Mauro Carvalho Chehab
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[media] rtl2830: cancel_delayed_work_sync before device removal / kfree 



rtl2830_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 01d1d714

drivers/media/dvb-frontends/rtl2830.c

+3 −0
Original line number Diff line number Diff line
@@ -900,6 +900,9 @@ static int rtl2830_remove(struct i2c_client *client) 


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



	/* stop statistics polling */

	cancel_delayed_work_sync(&dev->stat_work);



	i2c_del_mux_adapter(dev->adapter);

	regmap_exit(dev->regmap);

	kfree(dev);