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authorDavid Vrabel <dv02@dv02pc01.europe.root.pri>2008-10-15 14:41:56 +0100
committerDavid Vrabel <dv02@dv02pc01.europe.root.pri>2008-10-15 14:41:56 +0100
commit45c16cd9287819cf1c870f2d8e7738c4c90512ca (patch)
treee7fcd3c398338970692c3df596d557d6c7e21869
parent99ee3a6d4577e7633c66304e4aefeca5489c8d5c (diff)
uwb: use time_after() when purging stale beacons
Signed-off-by: David Vrabel <david.vrabel@csr.com>
-rw-r--r--drivers/uwb/beacon.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/uwb/beacon.c b/drivers/uwb/beacon.c
index f65a52c0afac..1ccf9eb3e086 100644
--- a/drivers/uwb/beacon.c
+++ b/drivers/uwb/beacon.c
@@ -298,11 +298,12 @@ struct uwb_beca_e *__uwb_beca_add(struct uwb_rc_evt_beacon *be,
void uwb_beca_purge(void)
{
struct uwb_beca_e *bce, *next;
- unsigned long now = jiffies;
+ unsigned long expires;
+
mutex_lock(&uwb_beca.mutex);
list_for_each_entry_safe(bce, next, &uwb_beca.list, node) {
- if (now - bce->ts_jiffies
- > msecs_to_jiffies(beacon_timeout_ms)) {
+ expires = bce->ts_jiffies + msecs_to_jiffies(beacon_timeout_ms);
+ if (time_after(jiffies, expires)) {
uwbd_dev_offair(bce);
list_del(&bce->node);
uwb_bce_put(bce);