diff --git a/drivers/pinctrl/pinctrl-imx.c b/drivers/pinctrl/pinctrl-imx.c
index a24448e..946d594 100644
--- a/drivers/pinctrl/pinctrl-imx.c
+++ b/drivers/pinctrl/pinctrl-imx.c
@@ -515,7 +515,7 @@
 	/* Initialise function */
 	func->name = np->name;
 	func->num_groups = of_get_child_count(np);
-	if (func->num_groups <= 0) {
+	if (func->num_groups == 0) {
 		dev_err(info->dev, "no groups defined in %s\n", np->full_name);
 		return -EINVAL;
 	}