diff --git a/drivers/gpio/gpio-sim.c b/drivers/gpio/gpio-sim.c
index a2706fe1340a..2ed5cbe7c8a8 100644
--- a/drivers/gpio/gpio-sim.c
+++ b/drivers/gpio/gpio-sim.c
@@ -235,10 +235,10 @@ static void gpio_sim_dbg_show(struct seq_file *seq, struct gpio_chip *gc)
 
 	guard(mutex)(&chip->lock);
 
-	for_each_requested_gpio(gc, i, label)
+	for_each_hwgpio(gc, i, label)
 		seq_printf(seq, " gpio-%-3d (%s) %s,%s\n",
 			   gc->base + i,
-			   label,
+			   label ?: "<unused>",
 			   test_bit(i, chip->direction_map) ? "input" :
 				test_bit(i, chip->value_map) ? "output-high" :
 							       "output-low",