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: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c
index 4aa7d8f..1d455ab7 100644
--- a/sound/soc/soc-jack.c
+++ b/sound/soc/soc-jack.c
@@ -221,6 +221,9 @@
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 @@
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]);
}