drivers/net/r6040.c: correct bad use of round_jiffies()

Compared to other places in the kernel, I think that this driver misuses
the function round_jiffies.

Signed-off-by: Christophe Jaillet <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/net/r6040.c b/drivers/net/r6040.c
index 169edc1..858b191 100644
--- a/drivers/net/r6040.c
+++ b/drivers/net/r6040.c
@@ -733,7 +733,7 @@
 	}
 
 	/* Timer active again */
-	mod_timer(&lp->timer, jiffies + round_jiffies(HZ));
+	mod_timer(&lp->timer, round_jiffies(jiffies + HZ));
 }
 
 /* Read/set MAC address routines */