From: Sathyanarayana Nujella <sathyanarayana.nujella@xxxxxxxxx>
During Coldboot stress tests, system encountered the following panic.
Panic logs depicts rt5682_i2c_shutdown() happened first and then later
jack detect handler workqueue function triggered.
This situation causes panic as rt5682_i2c_shutdown() resets codec.
Fix this panic by cancelling properly delayed work.
Panic log:
[ 20.936124] sof_pci_shutdown
[ 20.940248] snd_sof_device_shutdown
[ 20.945023] snd_sof_shutdown
[ 21.126849] rt5682_i2c_shutdown
[ 21.286053] rt5682_jack_detect_handler
[ 21.291235] BUG: kernel NULL pointer dereference, address: 000000000000037c
[ 21.299302] #PF: supervisor read access in kernel mode
[ 21.305254] #PF: error_code(0x0000) - not-present page
[ 21.311218] PGD 0 P4D 0
[ 21.314155] Oops: 0000 [#1] PREEMPT SMP NOPTI
[ 21.319206] CPU: 2 PID: 123 Comm: kworker/2:3 Tainted: G U 5.4.68 #10
[ 21.333687] ACPI: Preparing to enter system sleep state S5
[ 21.337669] Workqueue: events_power_efficient rt5682_jack_detect_handler [snd_soc_rt5682]
[ 21.337671] RIP: 0010:rt5682_jack_detect_handler+0x6c/0x279 [snd_soc_rt5682]
Fixes: a50067d4f3c1d ('ASoC: rt5682: split i2c driver into separate module')
Signed-off-by: Jairaj Arava <jairaj.arava@xxxxxxxxx>
Signed-off-by: Sathyanarayana Nujella <sathyanarayana.nujella@xxxxxxxxx>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxx>
Reviewed-by: Shuming Fan <shumingf@xxxxxxxxxxx>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
---
sound/soc/codecs/rt5682-i2c.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/sound/soc/codecs/rt5682-i2c.c b/sound/soc/codecs/rt5682-i2c.c
index 37d13120f5ba..6effd2611e3c 100644
--- a/sound/soc/codecs/rt5682-i2c.c
+++ b/sound/soc/codecs/rt5682-i2c.c
@@ -273,6 +273,8 @@ static void rt5682_i2c_shutdown(struct i2c_client *client)
{
struct rt5682_priv *rt5682 = i2c_get_clientdata(client);
+ cancel_delayed_work_sync(&rt5682->jack_detect_work);
+
rt5682_reset(rt5682);
}
--
2.25.1
