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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: Ernst Martin Witte <emw-linux-kernel@nocabal.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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@ -1372,6 +1372,9 @@ static int af9033_remove(struct i2c_client *client)
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dev_dbg(&dev->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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dev->fe.ops.release = NULL;
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dev->fe.demodulator_priv = NULL;
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kfree(dev);
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