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leds: led-class: Replace sprintf() with sysfs_emit() in sysfs show functions 

Replace sprintf() with sysfs_emit() in sysfs show functions.
sysfs_emit() is preferred to format sysfs output as it provides better
bounds checking.  No functional changes.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20251103120809.32834-1-thorsten.blum@linux.dev
Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
Thorsten Blum 2025-11-03 13:08:09 +01:00 committed by Lee Jones
parent c42b91c426
commit 92f4b016dc
1 changed files with 3 additions and 3 deletions
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6
drivers/leds/led-class.c
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@ -38,7 +38,7 @@ static ssize_t brightness_show(struct device *dev,
brightness = led_cdev->brightness;
mutex_unlock(&led_cdev->led_access);
return sprintf(buf, "%u\n", brightness);
return sysfs_emit(buf, "%u\n", brightness);
}
static ssize_t brightness_store(struct device *dev,
@ -80,7 +80,7 @@ static ssize_t max_brightness_show(struct device *dev,
max_brightness = led_cdev->max_brightness;
mutex_unlock(&led_cdev->led_access);
return sprintf(buf, "%u\n", max_brightness);
return sysfs_emit(buf, "%u\n", max_brightness);
}
static DEVICE_ATTR_RO(max_brightness);
@ -122,7 +122,7 @@ static ssize_t brightness_hw_changed_show(struct device *dev,
if (led_cdev->brightness_hw_changed == -1)
return -ENODATA;
return sprintf(buf, "%u\n", led_cdev->brightness_hw_changed);
return sysfs_emit(buf, "%u\n", led_cdev->brightness_hw_changed);
}
static DEVICE_ATTR_RO(brightness_hw_changed);