[v3,04/11] leds: led-class: Add __devm_led_get() helper

Commit Message

Hans de Goede Dec. 16, 2022, 11:30 a.m. UTC

Add a __devm_led_get() helper which registers a passed in led_classdev
with devm for unregistration.

This is a preparation patch for adding a generic (non devicetree specific)
devm_led_get() function.

Signed-off-by: Hans de Goede <[e-mail]>
---
 drivers/leds/led-class.c | 29 +++++++++++++++++------------
 1 file changed, 17 insertions(+), 12 deletions(-)

Patch

diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 1dd421ca56c1..6e25c411ba35 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -286,6 +286,22 @@  static void devm_led_release(struct device *dev, void *res)
 	led_put(*p);
 }
 
+static struct led_classdev *__devm_led_get(struct device *dev, struct led_classdev *led)
+{
+	struct led_classdev **dr;
+
+	dr = devres_alloc(devm_led_release, sizeof(struct led_classdev *), GFP_KERNEL);
+	if (!dr) {
+		led_put(led);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	*dr = led;
+	devres_add(dev, dr);
+
+	return led;
+}
+
 /**
  * devm_of_led_get - Resource-managed request of a LED device
  * @dev:	LED consumer
@@ -301,7 +317,6 @@  struct led_classdev *__must_check devm_of_led_get(struct device *dev,
 						  int index)
 {
 	struct led_classdev *led;
-	struct led_classdev **dr;
 
 	if (!dev)
 		return ERR_PTR(-EINVAL);
@@ -310,17 +325,7 @@  struct led_classdev *__must_check devm_of_led_get(struct device *dev,
 	if (IS_ERR(led))
 		return led;
 
-	dr = devres_alloc(devm_led_release, sizeof(struct led_classdev *),
-			  GFP_KERNEL);
-	if (!dr) {
-		led_put(led);
-		return ERR_PTR(-ENOMEM);
-	}
-
-	*dr = led;
-	devres_add(dev, dr);
-
-	return led;
+	return __devm_led_get(dev, led);
 }
 EXPORT_SYMBOL_GPL(devm_of_led_get);