diff options
| author | Ernst Martin Witte | 2016-01-09 18:18:45 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab | 2016-02-01 09:40:18 -0200 |
| commit | 631c694f7d7e17147bcf6c7c3669c8f4dc84cc09 (patch) | |
| tree | 28ddcb04999b3464000e847b24759c3a651b158f | |
| parent | 4c7cad4bbf718e73a49e236e2b79489f1ee83810 (diff) | |
[media] af9013: cancel_delayed_work_sync before device removal / kfree
af9013_remove was calling kfree(state) with possibly still active
schedule_delayed_work(&state->statistics_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>
| -rw-r--r-- | drivers/media/dvb-frontends/af9013.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/af9013.c b/drivers/media/dvb-frontends/af9013.c index e23197da84af..41ab5defb798 100644 --- a/drivers/media/dvb-frontends/af9013.c +++ b/drivers/media/dvb-frontends/af9013.c @@ -1344,6 +1344,10 @@ err: static void af9013_release(struct dvb_frontend *fe) { struct af9013_state *state = fe->demodulator_priv; + + /* stop statistics polling */ + cancel_delayed_work_sync(&state->statistics_work); + kfree(state); } |