Use of the time_after() macro, defined at linux/jiffies.h, which deal
with wrapping correctly and are nicer to read.

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

--- linux/drivers/net/tokenring/olympic.c	2005-07-13 17:53:30.000000000 -0300
+++ linux-kj/drivers/net/tokenring/olympic.c	2005-07-16 01:02:47.940921408 -0300
@@ -365,7 +365,7 @@
 		t=jiffies;
 		while (!readl(olympic_mmio+CLKCTL) & CLKCTL_PAUSE) { 
 			schedule() ; 
-			if(jiffies-t > 2*HZ) { 
+			if(time_after(jiffies, t + 2*HZ)) { 
 				printk(KERN_ERR "IBM Cardbus tokenring adapter not responsing.\n") ; 
 				return -ENODEV;
 			}
@@ -379,7 +379,7 @@
 	t=jiffies;
 	while(!((readl(olympic_mmio+SISR_RR)) & SISR_SRB_REPLY)) {
 		schedule();		
-		if(jiffies-t > 15*HZ) {
+		if(time_after(jiffies, t + 15*HZ)) {
 			printk(KERN_ERR "IBM PCI tokenring card not responding.\n");
 			return -ENODEV;
 		}
@@ -525,7 +525,7 @@
             			olympic_priv->srb_queued=0;
             			break;
         		}
-			if ((jiffies-t) > 10*HZ) { 
+			if (time_after(jiffies, t + 10*HZ)) { 
 				printk(KERN_WARNING "%s: SRB timed out. \n",dev->name) ; 
 				olympic_priv->srb_queued=0;
 				break ;