diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c
index 484d4438cd83..5665b6ea8119 100644
--- a/drivers/mailbox/mtk-cmdq-mailbox.c
+++ b/drivers/mailbox/mtk-cmdq-mailbox.c
@@ -69,7 +69,7 @@ struct cmdq_task {
 struct cmdq {
 	struct mbox_controller	mbox;
 	void __iomem		*base;
-	u32			irq;
+	int			irq;
 	u32			thread_nr;
 	u32			irq_mask;
 	struct cmdq_thread	*thread;
@@ -525,10 +525,8 @@ static int cmdq_probe(struct platform_device *pdev)
 	}
 
 	cmdq->irq = platform_get_irq(pdev, 0);
-	if (!cmdq->irq) {
-		dev_err(dev, "failed to get irq\n");
-		return -EINVAL;
-	}
+	if (cmdq->irq < 0)
+		return cmdq->irq;
 
 	plat_data = (struct gce_plat *)of_device_get_match_data(dev);
 	if (!plat_data) {