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Commit 4bdcaa05 authored by Ernst Martin Witte's avatar Ernst Martin Witte Committed by Mauro Carvalho Chehab
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[media] af9033: cancel_delayed_work_sync before device removal / kfree 



af9033_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 631c694f

drivers/media/dvb-frontends/af9033.c

+3 −0
Original line number Diff line number Diff line
@@ -1372,6 +1372,9 @@ static int af9033_remove(struct i2c_client *client) 


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



	/* stop statistics polling */

	cancel_delayed_work_sync(&dev->stat_work);



	dev->fe.ops.release = NULL;

	dev->fe.demodulator_priv = NULL;

	kfree(dev);