rc80211-pid: fix last_sample initialization

Fix last_sample initialization. kzalloc'ing the per-STA data wasn't enough, as jiffies can assume negative values as well. This fixes a bug which prevented correct PID operation for a while after booting. Thanks to Michael Buesch for reporting this. Reported-and-tested-by: Michael Buesch <[email protected]> Signed-off-by: Stefano Brivio <[email protected]> Signed-off-by: John W. Linville <[email protected]>
rtvt123 · Jan 28, 2008 · c09c723 · c09c723
1 parent f99b751
commit c09c723
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
@@ -496,6 +496,8 @@ static void *rate_control_pid_alloc_sta(void *priv, gfp_t gfp)
 	if (spinfo == NULL)
 		return NULL;
 
+	spinfo->last_sample = jiffies;
+
 #ifdef CONFIG_MAC80211_DEBUGFS
 	spin_lock_init(&spinfo->events.lock);
 	init_waitqueue_head(&spinfo->events.waitqueue);