提交 b8e22c1f 编写于 作者: L Lars-Peter Clausen 提交者: Mark Brown

ASoC: jack: Fix race in snd_soc_jack_add_gpios

The irq can fire as soon as it has been requested, thus all fields accessed
from within the irq handler must be initialized prior to requesting the irq.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
上级 77ee09c6
......@@ -221,6 +221,9 @@ int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
if (ret)
goto err;
INIT_WORK(&gpios[i].work, gpio_work);
gpios[i].jack = jack;
ret = request_irq(gpio_to_irq(gpios[i].gpio),
gpio_handler,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
......@@ -234,9 +237,6 @@ int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
gpio_export(gpios[i].gpio, false);
#endif
INIT_WORK(&gpios[i].work, gpio_work);
gpios[i].jack = jack;
/* Update initial jack status */
snd_soc_jack_gpio_detect(&gpios[i]);
}
......
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