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leds: aat1290: Use scoped device node handling to simplify error paths

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Obtain the device node reference with scoped/cleanup.h to reduce error
handling and make the code a bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240816-cleanup-h-of-node-put-var-v1-1-1d0292802470@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
Krzysztof Kozlowski 2024-08-16 17:31:33 +02:00 committed by Lee Jones
parent 8f3f075178
commit 1e63395e58
1 changed files with 6 additions and 8 deletions
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14
drivers/leds/flash/leds-aat1290.c
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@ -7,6 +7,7 @@
* Author: Jacek Anaszewski <j.anaszewski@samsung.com>
*/
#include <linux/cleanup.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/led-class-flash.h>
@ -215,7 +216,6 @@ static int aat1290_led_parse_dt(struct aat1290_led *led,
struct device_node **sub_node)
{
struct device *dev = &led->pdev->dev;
struct device_node *child_node;
#if IS_ENABLED(CONFIG_V4L2_FLASH_LED_CLASS)
struct pinctrl *pinctrl;
#endif
@ -246,7 +246,8 @@ static int aat1290_led_parse_dt(struct aat1290_led *led,
}
#endif
child_node = of_get_next_available_child(dev_of_node(dev), NULL);
struct device_node *child_node __free(device_node) =
of_get_next_available_child(dev_of_node(dev), NULL);
if (!child_node) {
dev_err(dev, "No DT child node found for connected LED.\n");
return -EINVAL;
@ -267,7 +268,7 @@ static int aat1290_led_parse_dt(struct aat1290_led *led,
if (ret < 0) {
dev_err(dev,
"flash-max-microamp DT property missing\n");
goto err_parse_dt;
return ret;
}
ret = of_property_read_u32(child_node, "flash-max-timeout-us",
@ -275,15 +276,12 @@ static int aat1290_led_parse_dt(struct aat1290_led *led,
if (ret < 0) {
dev_err(dev,
"flash-max-timeout-us DT property missing\n");
goto err_parse_dt;
return ret;
}
*sub_node = child_node;
err_parse_dt:
of_node_put(child_node);
return ret;
return 0;
}
static void aat1290_led_validate_mm_current(struct aat1290_led *led,