[PATCH v5 11/13] gpio: eic-sprd: use devm_atomic_notifier_chain_register()

[Eliav Farber <farbere@amazon.com>]

Replace the atomic_notifier_chain_register() +
devm_add_action_or_reset() pattern with a single call to
devm_atomic_notifier_chain_register(), removing the
sprd_eic_unregister_notifier() callback.

Signed-off-by: Eliav Farber <farbere@amazon.com>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
---
 drivers/gpio/gpio-eic-sprd.c | 17 ++---------------
 1 file changed, 2 insertions(+), 15 deletions(-)

diff --git a/drivers/gpio/gpio-eic-sprd.c b/drivers/gpio/gpio-eic-sprd.c
index 3b7ebcf12fe7..86eb9624d38a 100644
--- a/drivers/gpio/gpio-eic-sprd.c
+++ b/drivers/gpio/gpio-eic-sprd.c
@@ -601,13 +601,6 @@ static const struct irq_chip sprd_eic_irq = {
 	GPIOCHIP_IRQ_RESOURCE_HELPERS,
 };
 
-static void sprd_eic_unregister_notifier(void *data)
-{
-	struct notifier_block *nb = data;
-
-	atomic_notifier_chain_unregister(&sprd_eic_irq_notifier, nb);
-}
-
 static int sprd_eic_probe(struct platform_device *pdev)
 {
 	const struct sprd_eic_variant_data *pdata;
@@ -690,14 +683,8 @@ static int sprd_eic_probe(struct platform_device *pdev)
 	}
 
 	sprd_eic->irq_nb.notifier_call = sprd_eic_irq_notify;
-	ret = atomic_notifier_chain_register(&sprd_eic_irq_notifier,
-					     &sprd_eic->irq_nb);
-	if (ret)
-		return dev_err_probe(dev, ret,
-				     "Failed to register with the interrupt notifier");
-
-	return devm_add_action_or_reset(dev, sprd_eic_unregister_notifier,
-					&sprd_eic->irq_nb);
+	return devm_atomic_notifier_chain_register(dev, &sprd_eic_irq_notifier,
+						   &sprd_eic->irq_nb);
 }
 
 static const struct of_device_id sprd_eic_of_match[] = {
-- 
2.47.3