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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	linux-leds@vger.kernel.org,
	linux-kernel@vger.kernel.org
Cc: Pavel Machek <pavel@ucw.cz>,
	Lee Jones <lee@kernel.org>
Subject: [PATCH v1 1/6] leds: spi-byte: call of_node_put() on error path
Date: Thu,  6 Jun 2024 20:29:18 +0300
Message-ID: <20240606173037.3091598-2-andriy.shevchenko@linux.intel.com>
In-Reply-To: <20240606173037.3091598-1-andriy.shevchenko@linux.intel.com>
References: <20240606173037.3091598-1-andriy.shevchenko@linux.intel.com>
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Add a missing call to of_node_put(np) on error.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/leds/leds-spi-byte.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/leds/leds-spi-byte.c b/drivers/leds/leds-spi-byte.c
index 96296db5f410..b04cf502e603 100644
--- a/drivers/leds/leds-spi-byte.c
+++ b/drivers/leds/leds-spi-byte.c
@@ -91,7 +91,6 @@ static int spi_byte_probe(struct spi_device *spi)
 		dev_err(dev, "Device must have exactly one LED sub-node.");
 		return -EINVAL;
 	}
-	child = of_get_next_available_child(dev_of_node(dev), NULL);
 
 	led = devm_kzalloc(dev, sizeof(*led), GFP_KERNEL);
 	if (!led)
@@ -104,11 +103,13 @@ static int spi_byte_probe(struct spi_device *spi)
 	led->ldev.max_brightness = led->cdef->max_value - led->cdef->off_value;
 	led->ldev.brightness_set_blocking = spi_byte_brightness_set_blocking;
 
+	child = of_get_next_available_child(dev_of_node(dev), NULL);
 	state = of_get_property(child, "default-state", NULL);
 	if (state) {
 		if (!strcmp(state, "on")) {
 			led->ldev.brightness = led->ldev.max_brightness;
 		} else if (strcmp(state, "off")) {
+			of_node_put(child);
 			/* all other cases except "off" */
 			dev_err(dev, "default-state can only be 'on' or 'off'");
 			return -EINVAL;
@@ -123,9 +124,12 @@ static int spi_byte_probe(struct spi_device *spi)
 
 	ret = devm_led_classdev_register_ext(&spi->dev, &led->ldev, &init_data);
 	if (ret) {
+		of_node_put(child);
 		mutex_destroy(&led->mutex);
 		return ret;
 	}
+
+	of_node_put(child);
 	spi_set_drvdata(spi, led);
 
 	return 0;
-- 
2.43.0.rc1.1336.g36b5255a03ac