[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_ppp.c b/drivers/net/wan/sdla_ppp.c
index 1761cb68ab48..a4b489cccbbf 100644
--- a/drivers/net/wan/sdla_ppp.c
+++ b/drivers/net/wan/sdla_ppp.c
@@ -101,6 +101,7 @@
 #include <linux/if_arp.h>       /* ARPHRD_* defines */
 #include <asm/byteorder.h>      /* htons(), etc. */
 #include <linux/in.h>           /* sockaddr_in */
+#include <linux/jiffies.h>      /* time_after() macro */
 
 
 #include <asm/uaccess.h>
@@ -482,7 +483,7 @@ static int update(struct wan_device *wandev)
                 if(ppp_priv_area->update_comms_stats == 0){
                         break;
                 }
-                if ((jiffies - timeout) > (1 * HZ)){
+                if (time_after(jiffies, timeout + 1 * HZ)){
                         ppp_priv_area->update_comms_stats = 0;
                         ppp_priv_area->timer_int_enabled &=
                                 ~TMR_INT_ENABLED_UPDATE;