[WAN]: drivers/net/wan/: use of time_after macro

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

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>
Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/wan/sdla_x25.c b/drivers/net/wan/sdla_x25.c
index 3a93d2fd4fbf..8a95d61a2f8f 100644
--- a/drivers/net/wan/sdla_x25.c
+++ b/drivers/net/wan/sdla_x25.c
@@ -91,6 +91,7 @@
 #include <linux/wanrouter.h>    /* WAN router definitions */
 #include <linux/wanpipe.h>      /* WANPIPE common user API definitions */
 #include <linux/workqueue.h>
+#include <linux/jiffies.h>      /* time_after() macro */
 #include <asm/byteorder.h>      /* htons(), etc. */
 #include <asm/atomic.h>
 #include <linux/delay.h>        /* Experimental delay */
@@ -867,7 +868,7 @@ static int update(struct wan_device* wandev)
                 if (!(card->u.x.timer_int_enabled & TMR_INT_ENABLED_UPDATE)){   
                         break;
                 }
-                if ((jiffies-timeout) > 1*HZ){
+                if (time_after(jiffies, timeout + 1*HZ)){
                         card->u.x.timer_int_enabled &= ~TMR_INT_ENABLED_UPDATE;
                         return -EAGAIN;
                 }