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| author |   Ernst Martin Witte <emw-linux-kernel@nocabal.de> | 2016-01-09 18:18:44 -0200 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2016-02-01 09:42:30 -0200 |
| commit | 41ff9142df375ac319b1d9fe50d88e4247da6f1a (patch) | |
| tree | 1b3f077f251bdb021377ed8aa65af49ca102edf0 /drivers/media/dvb-frontends/ts2020.c | |
| parent | [media] rtl2830: cancel_delayed_work_sync before device removal / kfree (diff) | |
| download | linux-dev-41ff9142df375ac319b1d9fe50d88e4247da6f1a.tar.xz linux-dev-41ff9142df375ac319b1d9fe50d88e4247da6f1a.zip | |
[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: Ernst Martin Witte <emw-linux-kernel@nocabal.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/dvb-frontends/ts2020.c')
| -rw-r--r-- | drivers/media/dvb-frontends/ts2020.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/ts2020.c b/drivers/media/dvb-frontends/ts2020.c index 7979e5d6498b..14b410ffe612 100644 --- a/drivers/media/dvb-frontends/ts2020.c +++ b/drivers/media/dvb-frontends/ts2020.c @@ -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; |