[alsa-devel] [PATCH] ASoC: Report IRQ_NONE when we don't see an interrupt from WM8962

[Mark Brown]

This should never happen with level triggered IRQs.

Signed-off-by: Mark Brown <broonie at opensource.wolfsonmicro.com>
---
 sound/soc/codecs/wm8962.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 0c61c2f..b877fa9 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3577,6 +3577,9 @@ static irqreturn_t wm8962_irq(int irq, void *data)
 	active = snd_soc_read(codec, WM8962_INTERRUPT_STATUS_2);
 	active &= ~mask;
 
+	if (!active)
+		return IRQ_NONE;
+
 	/* Acknowledge the interrupts */
 	snd_soc_write(codec, WM8962_INTERRUPT_STATUS_2, active);
 
-- 
1.7.5.4