diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2023-09-12 13:32:41 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-09-12 14:37:47 +0100 |
| commit | df7d595f6bd9dc96cc275cc4b0f313fcfa423c58 (patch) | |
| tree | a0043859ecae5e8a7a89c5268164f1822bddf095 /sound | |
| parent | fa6a0c0c1dd53b3949ca56bf7213648dfd6a62ee (diff) | |
ASoC: rt5640: Fix sleep in atomic context
Following prints are observed while testing audio on Jetson AGX Orin which
has onboard RT5640 audio codec:
BUG: sleeping function called from invalid context at kernel/workqueue.c:3027
in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 0, name: swapper/0
preempt_count: 10001, expected: 0
RCU nest depth: 0, expected: 0
------------[ cut here ]------------
WARNING: CPU: 0 PID: 0 at kernel/irq/handle.c:159 __handle_irq_event_percpu+0x1e0/0x270
---[ end trace ad1c64905aac14a6 ]-
The IRQ handler rt5640_irq() runs in interrupt context and can sleep
during cancel_delayed_work_sync().
The only thing which rt5640_irq() does is cancel + (re-)queue
the jack_work delayed_work. This can be done in a single non sleeping
call by replacing queue_delayed_work() with mod_delayed_work(),
avoiding the sleep in atomic context.
Fixes: 051dade34695 ("ASoC: rt5640: Fix the wrong state of JD1 and JD2")
Reported-by: Sameer Pujar <spujar@nvidia.com>
Closes: https://lore.kernel.org/r/1688015537-31682-4-git-send-email-spujar@nvidia.com
Cc: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230912113245.320159-3-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/rt5640.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c index 05ff8066171b..5c34c045d396 100644 --- a/sound/soc/codecs/rt5640.c +++ b/sound/soc/codecs/rt5640.c @@ -2403,13 +2403,11 @@ static irqreturn_t rt5640_irq(int irq, void *data) struct rt5640_priv *rt5640 = data; int delay = 0; - if (rt5640->jd_src == RT5640_JD_SRC_HDA_HEADER) { - cancel_delayed_work_sync(&rt5640->jack_work); + if (rt5640->jd_src == RT5640_JD_SRC_HDA_HEADER) delay = 100; - } if (rt5640->jack) - queue_delayed_work(system_long_wq, &rt5640->jack_work, delay); + mod_delayed_work(system_long_wq, &rt5640->jack_work, delay); return IRQ_HANDLED; } |