drivers/net/wireless/atmel.c: Use time_* macros

The functions time_before, time_before_eq, time_after, and time_after_eq are more robust for comparing jiffies against other values.

So following patch implements usage of the time_after() macro, defined at linux/jiffies.h, which deals with wrapping correctly

Cc: linux-wireless@vger.kernel.org
Signed-off-by: S.Çağlar Onur <caglar@pardus.org.tr>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/atmel.c b/drivers/net/wireless/atmel.c
index 63ec7a70ee7658aeb282797b7b0f8940611ede2f..ef2da4023d685e075426ade0e9c5cc3315c2ebea 100644 (file)
--- a/drivers/net/wireless/atmel.c
+++ b/drivers/net/wireless/atmel.c
@@ -66,6 +66,7 @@
 #include <linux/device.h>
 #include <linux/moduleparam.h>
 #include <linux/firmware.h>
+#include <linux/jiffies.h>
 #include <net/ieee80211.h>
 #include "atmel.h"
 
@@ -516,7 +517,7 @@ struct atmel_private {
                SITE_SURVEY_IN_PROGRESS,
                SITE_SURVEY_COMPLETED
        } site_survey_state;
-       time_t last_survey;
+       unsigned long last_survey;
 
        int station_was_associated, station_is_associated;
        int fast_scan;
@@ -2283,7 +2284,7 @@ static int atmel_set_scan(struct net_device *dev,
                return -EAGAIN;
 
        /* Timeout old surveys. */
-       if ((jiffies - priv->last_survey) > (20 * HZ))
+       if (time_after(jiffies, priv->last_survey + 20 * HZ))
                priv->site_survey_state = SITE_SURVEY_IDLE;
        priv->last_survey = jiffies;