[PATCH] drivers/net/arm/etherh.c: use time_after()

From: Marcelo Feitoza Parisi <marcelo@feitoza.com.br>

It deals with wrapping correctly and is nicer to read.

Signed-off-by: Marcelo Feitoza Parisi <marcelo@feitoza.com.br>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>

Index: linux-kj/drivers/net/arm/etherh.c
===================================================================
--- linux-kj.orig/drivers/net/arm/etherh.c	2006-01-18 02:22:26.000000000 +0300
+++ linux-kj/drivers/net/arm/etherh.c	2006-01-18 16:41:05.000000000 +0300
@@ -46,6 +46,7 @@
 #include <linux/device.h>
 #include <linux/init.h>
 #include <linux/bitops.h>
+#include <linux/jiffies.h>
 
 #include <asm/system.h>
 #include <asm/ecard.h>
@@ -355,7 +356,7 @@ etherh_block_output (struct net_device *
 	dma_start = jiffies;
 
 	while ((readb (addr + EN0_ISR) & ENISR_RDC) == 0)
-		if (jiffies - dma_start > 2*HZ/100) { /* 20ms */
+		if (time_after(jiffies, dma_start + 2*HZ/100)) { /* 20ms */
 			printk(KERN_ERR "%s: timeout waiting for TX RDC\n",
 				dev->name);
 			etherh_reset (dev);