[PATCH] drivers/net/*: use time_after() and friends

They deal with wrapping correctly and are nicer to read.  Also make
jiffies-holding variables unsigned long.

Signed-off-by: Marcelo Feitoza Parisi <marcelo@feitoza.com.br>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/net/hp100.c b/drivers/net/hp100.c
index 55c7ed608391..a37b82ebca37 100644
--- a/drivers/net/hp100.c
+++ b/drivers/net/hp100.c
@@ -115,6 +115,7 @@
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/bitops.h>
+#include <linux/jiffies.h>
 
 #include <asm/io.h>
 
@@ -1499,7 +1500,7 @@ static int hp100_start_xmit_bm(struct sk_buff *skb, struct net_device *dev)
                 printk("hp100: %s: start_xmit_bm: No TX PDL available.\n", dev->name);
 #endif
                 /* not waited long enough since last tx? */
-                if (jiffies - dev->trans_start < HZ)
+                if (time_before(jiffies, dev->trans_start + HZ))
                         return -EAGAIN;
 
                 if (hp100_check_lan(dev))
@@ -1652,7 +1653,7 @@ static int hp100_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 printk("hp100: %s: start_xmit: tx free mem = 0x%x\n", dev->name, i);
 #endif
                 /* not waited long enough since last failed tx try? */
-                if (jiffies - dev->trans_start < HZ) {
+                if (time_before(jiffies, dev->trans_start + HZ)) {
 #ifdef HP100_DEBUG
                         printk("hp100: %s: trans_start timing problem\n",
                                dev->name);