[PATCH v6 2/7] Input: adp5585: use devm_blocking_notifier_chain_register()

[Eliav Farber <farbere@amazon.com>]

Replace the blocking_notifier_chain_register() +
devm_add_action_or_reset() pattern with a single call to
devm_blocking_notifier_chain_register(), removing the
adp5585_keys_unreg_notifier() callback.

Signed-off-by: Eliav Farber <farbere@amazon.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
Changes in v6:
- Rebased onto v7.4-rc1. No functional change since v5.
- Dmitry Torokhov's Acked-by retained; the patch is unchanged since v1,
  when it was given.

 drivers/input/keyboard/adp5585-keys.c | 18 +++---------------
 1 file changed, 3 insertions(+), 15 deletions(-)

diff --git a/drivers/input/keyboard/adp5585-keys.c b/drivers/input/keyboard/adp5585-keys.c
index ee2c3cb0445f..b27390d0e706 100644
--- a/drivers/input/keyboard/adp5585-keys.c
+++ b/drivers/input/keyboard/adp5585-keys.c
@@ -254,15 +254,6 @@ static int adp5585_keys_ev_handle(struct notifier_block *nb, unsigned long key,
 	return NOTIFY_STOP;
 }
 
-static void adp5585_keys_unreg_notifier(void *data)
-{
-	struct adp5585_kpad *kpad = data;
-	struct adp5585_dev *adp5585 = dev_get_drvdata(kpad->dev->parent);
-
-	blocking_notifier_chain_unregister(&adp5585->event_notifier,
-					   &kpad->nb);
-}
-
 static int adp5585_keys_probe(struct platform_device *pdev)
 {
 	const struct platform_device_id *id = platform_get_device_id(pdev);
@@ -318,12 +309,9 @@ static int adp5585_keys_probe(struct platform_device *pdev)
 		return error;
 
 	kpad->nb.notifier_call = adp5585_keys_ev_handle;
-	error = blocking_notifier_chain_register(&adp5585->event_notifier,
-						 &kpad->nb);
-	if (error)
-		return error;
-
-	error = devm_add_action_or_reset(dev, adp5585_keys_unreg_notifier, kpad);
+	error = devm_blocking_notifier_chain_register(dev,
+						      &adp5585->event_notifier,
+						      &kpad->nb);
 	if (error)
 		return error;
 
-- 
2.47.3