[PATCH] ASoC: cs35l56: Don't leave parent IRQ disabled if system_suspend fails

[Richard Fitzgerald <rf@opensource.cirrus.com>]

In cs35l56_system_suspend() re-enable the parent IRQ if the call to
pm_runtime_force_suspend() returns an error.

Fixes: f9dc6b875ec0 ("ASoC: cs35l56: Add basic system suspend handling")
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
---
 sound/soc/codecs/cs35l56.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/cs35l56.c b/sound/soc/codecs/cs35l56.c
index 2e3b5f5e33ba..570a68829ccd 100644
--- a/sound/soc/codecs/cs35l56.c
+++ b/sound/soc/codecs/cs35l56.c
@@ -1524,6 +1524,7 @@ static int __maybe_unused cs35l56_runtime_resume_i2c_spi(struct device *dev)
 int cs35l56_system_suspend(struct device *dev)
 {
 	struct cs35l56_private *cs35l56 = dev_get_drvdata(dev);
+	int ret;
 
 	dev_dbg(dev, "system_suspend\n");
 
@@ -1539,7 +1540,11 @@ int cs35l56_system_suspend(struct device *dev)
 	if (cs35l56->base.irq)
 		disable_irq(cs35l56->base.irq);
 
-	return pm_runtime_force_suspend(dev);
+	ret = pm_runtime_force_suspend(dev);
+	if ((ret < 0) && cs35l56->base.irq)
+		enable_irq(cs35l56->base.irq);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(cs35l56_system_suspend);
 
-- 
2.47.3