[PATCH 2/2] leds: cr0014114: queue recount work on freezable workqueue

[Jiale Yao]

The firmware workaround periodically recounts the LED state by issuing
SPI transfers. Its delayed work runs on the non-freezable system
workqueue and can therefore access the controller after it has been
suspended.

Queue the recount work on system_freezable_wq so hardware access is
deferred until devices have resumed.

Signed-off-by: Jiale Yao <yaojiale02@xxxxxxx>
---
 drivers/leds/leds-cr0014114.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/leds/leds-cr0014114.c b/drivers/leds/leds-cr0014114.c
index 3f6931ae0bcc..afe3730e1222 100644
--- a/drivers/leds/leds-cr0014114.c
+++ b/drivers/leds/leds-cr0014114.c
@@ -155,7 +155,8 @@ static void cr0014114_recount_work(struct work_struct *work)
 	if (ret)
 		dev_warn(priv->dev, "sync of LEDs failed %d\n", ret);
 
-	schedule_delayed_work(&priv->work, CR_RECOUNT_DELAY);
+	queue_delayed_work(system_freezable_wq, &priv->work,
+			   CR_RECOUNT_DELAY);
 }
 
 static int cr0014114_set_sync(struct led_classdev *ldev,
@@ -256,7 +257,8 @@ static int cr0014114_probe(struct spi_device *spi)
 		return ret;
 
 	/* setup recount work to workaround buggy firmware */
-	schedule_delayed_work(&priv->work, CR_RECOUNT_DELAY);
+	queue_delayed_work(system_freezable_wq, &priv->work,
+			   CR_RECOUNT_DELAY);
 
 	spi_set_drvdata(spi, priv);
 
-- 
2.34.1