diff --git a/drivers/net/phy/mdio-bcm-unimac.c b/drivers/net/phy/mdio-bcm-unimac.c
index 89425ca484128d6c784439def83d8cd466252542..73c5267a11fd9241f7a23f8789a464ebbba9258a 100644
--- a/drivers/net/phy/mdio-bcm-unimac.c
+++ b/drivers/net/phy/mdio-bcm-unimac.c
@@ -71,7 +71,7 @@ static int unimac_mdio_poll(void *wait_func_data)
 			return 0;
 
 		usleep_range(1000, 2000);
-	} while (timeout--);
+	} while (--timeout);
 
 	if (!timeout)
 		return -ETIMEDOUT;