[PATCH 4.14 156/251] ASoC: cs42l42: Defer probe if request_threaded_irq() returns EPROBE_DEFER

[Greg Kroah-Hartman]

From: Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx>

[ Upstream commit 0306988789d9d91a18ff70bd2bf165d3ae0ef1dd ]

The driver can run without an interrupt so if devm_request_threaded_irq()
failed, the probe() just carried on. But if this was EPROBE_DEFER the
driver would continue without an interrupt instead of deferring to wait
for the interrupt to become available.

Fixes: 2c394ca79604 ("ASoC: Add support for CS42L42 codec")
Signed-off-by: Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20211015133619.4698-6-rf@xxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 sound/soc/codecs/cs42l42.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c
index a341c5b08434b..7ff8b9f269713 100644
--- a/sound/soc/codecs/cs42l42.c
+++ b/sound/soc/codecs/cs42l42.c
@@ -1805,8 +1805,9 @@ static int cs42l42_i2c_probe(struct i2c_client *i2c_client,
 			NULL, cs42l42_irq_thread,
 			IRQF_ONESHOT | IRQF_TRIGGER_LOW,
 			"cs42l42", cs42l42);
-
-	if (ret != 0)
+	if (ret == -EPROBE_DEFER)
+		goto err_disable;
+	else if (ret != 0)
 		dev_err(&i2c_client->dev,
 			"Failed to request IRQ: %d\n", ret);
 
-- 
2.33.0