diff --git a/drivers/net/can/spi/mcp251x.c b/drivers/net/can/spi/mcp251x.c
index e908176086450..663203fbb1b83 100644
--- a/drivers/net/can/spi/mcp251x.c
+++ b/drivers/net/can/spi/mcp251x.c
@@ -951,6 +951,9 @@ static int mcp251x_open(struct net_device *net)
 	priv->tx_skb = NULL;
 	priv->tx_len = 0;
 
+	if (spi->dev.of_node)
+	    flags = 0;
+
 	ret = request_threaded_irq(spi->irq, NULL, mcp251x_can_ist,
 				   flags | IRQF_ONESHOT, DEVICE_NAME, priv);
 	if (ret) {