diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index afc35fd1d9aa..a8c615692803 100644
--- a/drivers/irqchip/irq-crossbar.c
+++ b/drivers/irqchip/irq-crossbar.c
@@ -250,6 +250,8 @@ static int __init crossbar_of_init(struct device_node *node)
 	iounmap(cb->crossbar_base);
 err_cb:
 	kfree(cb);
+
+	cb = NULL;
 	return ret;
 }