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ASoC: codecs: rt5640: Always disable IRQs from rt5640_cancel_work()

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Disable IRQs from rt5640_cancel_work(), this fixes a crash caused by
the IRQ never getting freed when the driver is unbound from the i2c_client
with jack-detection active:

[  193.138780] rt5640 i2c-rt5640: ASoC: unknown pin LDO2
[  193.138830] rt5640 i2c-rt5640: ASoC: unknown pin MICBIAS1
[  193.671218] BUG: kernel NULL pointer dereference, address: 0000000000000078
[  193.671239] #PF: supervisor read access in kernel mode
[  193.671248] #PF: error_code(0x0000) - not-present page
...
[  193.671531]  ? asm_exc_page_fault+0x22/0x30
[  193.671551]  ? rt5640_jack_inserted+0x10/0x80 [snd_soc_rt5640]
[  193.671574]  rt5640_detect_headset+0x93/0x130 [snd_soc_rt5640]
[  193.671596]  rt5640_jack_work+0x93/0x355 [snd_soc_rt5640]

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patch.msgid.link/20241024215612.92147-1-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Hans de Goede 2024-10-24 23:56:12 +02:00 committed by Mark Brown
parent db7e59e6a3
commit 032532f91a
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 15 additions and 12 deletions
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27
sound/soc/codecs/rt5640.c
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@ -2419,10 +2419,20 @@ static irqreturn_t rt5640_jd_gpio_irq(int irq, void *data)
return IRQ_HANDLED;
}
static void rt5640_cancel_work(void *data)
static void rt5640_disable_irq_and_cancel_work(void *data)
{
struct rt5640_priv *rt5640 = data;
if (rt5640->jd_gpio_irq_requested) {
free_irq(rt5640->jd_gpio_irq, rt5640);
rt5640->jd_gpio_irq_requested = false;
}
if (rt5640->irq_requested) {
free_irq(rt5640->irq, rt5640);
rt5640->irq_requested = false;
}
cancel_delayed_work_sync(&rt5640->jack_work);
cancel_delayed_work_sync(&rt5640->bp_work);
}
@ -2463,13 +2473,7 @@ static void rt5640_disable_jack_detect(struct snd_soc_component *component)
if (!rt5640->jack)
return;
if (rt5640->jd_gpio_irq_requested)
free_irq(rt5640->jd_gpio_irq, rt5640);
if (rt5640->irq_requested)
free_irq(rt5640->irq, rt5640);
rt5640_cancel_work(rt5640);
rt5640_disable_irq_and_cancel_work(rt5640);
if (rt5640->jack->status & SND_JACK_MICROPHONE) {
rt5640_disable_micbias1_ovcd_irq(component);
@ -2477,8 +2481,6 @@ static void rt5640_disable_jack_detect(struct snd_soc_component *component)
snd_soc_jack_report(rt5640->jack, 0, SND_JACK_BTN_0);
}
rt5640->jd_gpio_irq_requested = false;
rt5640->irq_requested = false;
rt5640->jd_gpio = NULL;
rt5640->jack = NULL;
}
@ -2798,7 +2800,8 @@ static int rt5640_suspend(struct snd_soc_component *component)
if (rt5640->jack) {
/* disable jack interrupts during system suspend */
disable_irq(rt5640->irq);
rt5640_cancel_work(rt5640);
cancel_delayed_work_sync(&rt5640->jack_work);
cancel_delayed_work_sync(&rt5640->bp_work);
}
snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF);
@ -3032,7 +3035,7 @@ static int rt5640_i2c_probe(struct i2c_client *i2c)
INIT_DELAYED_WORK(&rt5640->jack_work, rt5640_jack_work);
/* Make sure work is stopped on probe-error / remove */
ret = devm_add_action_or_reset(&i2c->dev, rt5640_cancel_work, rt5640);
ret = devm_add_action_or_reset(&i2c->dev, rt5640_disable_irq_and_cancel_work, rt5640);
if (ret)
return ret;