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-rw-r--r--net/wireless/reg.c25
1 files changed, 24 insertions, 1 deletions
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 7b1a89b20ebf..2714379ce2d6 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -106,6 +106,9 @@ struct reg_beacon {
static void reg_todo(struct work_struct *work);
static DECLARE_WORK(reg_work, reg_todo);
+static void reg_timeout_work(struct work_struct *work);
+static DECLARE_DELAYED_WORK(reg_timeout, reg_timeout_work);
+
/* We keep a static world regulatory domain in case of the absence of CRDA */
static const struct ieee80211_regdomain world_regdom = {
.n_reg_rules = 5,
@@ -1330,6 +1333,9 @@ static void reg_set_request_processed(void)
need_more_processing = true;
spin_unlock(&reg_requests_lock);
+ if (last_request->initiator == NL80211_REGDOM_SET_BY_USER)
+ cancel_delayed_work_sync(&reg_timeout);
+
if (need_more_processing)
schedule_work(&reg_work);
}
@@ -1440,8 +1446,17 @@ static void reg_process_hint(struct regulatory_request *reg_request)
r = __regulatory_hint(wiphy, reg_request);
/* This is required so that the orig_* parameters are saved */
if (r == -EALREADY && wiphy &&
- wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY)
+ wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY) {
wiphy_update_regulatory(wiphy, initiator);
+ return;
+ }
+
+ /*
+ * We only time out user hints, given that they should be the only
+ * source of bogus requests.
+ */
+ if (reg_request->initiator == NL80211_REGDOM_SET_BY_USER)
+ schedule_delayed_work(&reg_timeout, msecs_to_jiffies(3142));
}
/*
@@ -2169,6 +2184,13 @@ out:
mutex_unlock(&reg_mutex);
}
+static void reg_timeout_work(struct work_struct *work)
+{
+ REG_DBG_PRINT("Timeout while waiting for CRDA to reply, "
+ "restoring regulatory settings");
+ restore_regulatory_settings(true);
+}
+
int __init regulatory_init(void)
{
int err = 0;
@@ -2222,6 +2244,7 @@ void /* __init_or_exit */ regulatory_exit(void)
struct reg_beacon *reg_beacon, *btmp;
cancel_work_sync(&reg_work);
+ cancel_delayed_work_sync(&reg_timeout);
mutex_lock(&cfg80211_mutex);
mutex_lock(&reg_mutex);

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