leds: pwm-multicolor: Add check for fwnode_property_read_u32

Add a check to the return value of fwnode_property_read_u32()
in case it fails.

Signed-off-by: Yuanjun Gong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>

Author: AnnYugawa

drivers/leds/rgb/leds-pwm-multicolor.c

@@ -141,8 +141,11 @@ static int led_pwm_mc_probe(struct platform_device *pdev)
 
 	/* init the multicolor's LED class device */
 	cdev = &priv->mc_cdev.led_cdev;
-	fwnode_property_read_u32(mcnode, "max-brightness",
+	ret = fwnode_property_read_u32(mcnode, "max-brightness",
 				 &cdev->max_brightness);
+	if (ret)
+		goto release_mcnode;
+
 	cdev->flags = LED_CORE_SUSPENDRESUME;
 	cdev->brightness_set_blocking = led_pwm_mc_set;