omap_serial: Removing superfluous check on no interrupt pending.

The do .. while loop checks for interrupt pending at the
start of the loop and exits if there is none, it then
checks again for this condition at the end of the loop.

Signed-off-by: Martin Townsend <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

drivers/tty/serial/omap-serial.c

@@ -610,7 +610,7 @@ static irqreturn_t serial_omap_irq(int irq, void *dev_id)
 		default:
 			break;
 		}
-	} while (!(iir & UART_IIR_NO_INT) && max_count--);
+	} while (max_count--);
 
 	spin_unlock(&up->port.lock);