diff --git a/drivers/gpio/gpio-sim.c b/drivers/gpio/gpio-sim.c
index a1c8702f362c..fab67a5785d7 100644
--- a/drivers/gpio/gpio-sim.c
+++ b/drivers/gpio/gpio-sim.c
@@ -721,8 +721,10 @@ static char **gpio_sim_make_line_names(struct gpio_sim_bank *bank,
 	if (!line_names)
 		return ERR_PTR(-ENOMEM);
 
-	list_for_each_entry(line, &bank->line_list, siblings)
-		line_names[line->offset] = line->name;
+	list_for_each_entry(line, &bank->line_list, siblings) {
+		if (line->name && (line->offset <= max_offset))
+			line_names[line->offset] = line->name;
+	}
 
 	return line_names;
 }