diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index 6bce1a6c0496..ab9159441d02 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -784,17 +784,18 @@ out_port_irq:
 
 static irqreturn_t sc16is7xx_irq(int irq, void *dev_id)
 {
+	bool keep_polling;
+
 	struct sc16is7xx_port *s = (struct sc16is7xx_port *)dev_id;
 
-	while (1) {
-		bool keep_polling = false;
+	do {
 		int i;
 
+		keep_polling = false;
+
 		for (i = 0; i < s->devtype->nr_uart; ++i)
 			keep_polling |= sc16is7xx_port_irq(s, i);
-		if (!keep_polling)
-			break;
-	}
+	} while (keep_polling);
 
 	return IRQ_HANDLED;
 }