diff --git a/drivers/sound/max98357a.c b/drivers/sound/max98357a.c
index 827262d..b3d27a3 100644
--- a/drivers/sound/max98357a.c
+++ b/drivers/sound/max98357a.c
@@ -69,7 +69,7 @@
 	acpigen_write_name(ctx, "_CRS");
 	acpigen_write_resourcetemplate_header(ctx);
 	ret = acpi_device_write_gpio_desc(ctx, &priv->sdmode_gpio);
-	if (ret)
+	if (ret < 0)
 		return log_msg_ret("gpio", ret);
 	acpigen_write_resourcetemplate_footer(ctx);