leds: ns2: Slightly simplify a memory allocation

Use devm_kcalloc() instead of devm_kzalloc()+array_size().

Signed-off-by: Christophe JAILLET <[e-mail]>
Link: https://lore.kernel.org/r/560b8f140c[e-mail]
Signed-off-by: Lee Jones <[e-mail]>

drivers/leds/leds-ns2.c

···
 	if (!count)
 		return -ENODEV;
 
-	leds = devm_kzalloc(dev, array_size(sizeof(*leds), count), GFP_KERNEL);
+	leds = devm_kcalloc(dev, count, sizeof(*leds), GFP_KERNEL);
 	if (!leds)
 		return -ENOMEM;