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[media] si2157: cancel_delayed_work_sync before device removal / kfree
si2157_remove was calling kfree(dev) with possibly still active schedule_delayed_work(dev->stat_work). This caused kernel panics in call_timer_fn e.g. after rmmod cx23885. Signed-off-by: Ernst Martin Witte <emw-linux-kernel@nocabal.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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@ -458,6 +458,9 @@ static int si2157_remove(struct i2c_client *client)
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dev_dbg(&client->dev, "\n");
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/* stop statistics polling */
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cancel_delayed_work_sync(&dev->stat_work);
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memset(&fe->ops.tuner_ops, 0, sizeof(struct dvb_tuner_ops));
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fe->tuner_priv = NULL;
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kfree(dev);
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