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/char/lp.c	2005-07-13 17:52:02.000000000 -0300
+++ linux-kj/drivers/char/lp.c	2005-07-15 15:45:36.687244480 -0300
@@ -128,6 +128,7 @@
 #include <linux/console.h>
 #include <linux/device.h>
 #include <linux/wait.h>
+#include <linux/jiffies.h>
 
 #include <linux/parport.h>
 #undef LP_STATS
@@ -307,7 +308,7 @@
 			(LP_F(minor) & LP_ABORT));
 
 #ifdef LP_STATS
-	if (jiffies-lp_table[minor].lastcall > LP_TIME(minor))
+	if (time_after(jiffies, lp_table[minor].lastcall + LP_TIME(minor)))
 		lp_table[minor].runchars = 0;
 
 	lp_table[minor].lastcall = jiffies;