1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index fad245b064d6..d57bf3e708d8 100644
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -549,7 +549,7 @@ static irqreturn_t atmel_interrupt(int irq, void *dev_id)
                 atmel_handle_transmit(port, pending);
         } while (pass_counter++ < ATMEL_ISR_PASS_LIMIT);
 
-        return IRQ_HANDLED;
+        return pass_counter ? IRQ_HANDLED : IRQ_NONE;
 }
 
 /*