3.16.7-ckt4 -stable review patch.  If anyone has any objections, please let me 
know.

------------------

From: Arik Nemtsov <[email protected]>

commit 34f05f543f02350e920bddb7660ffdd4697aaf60 upstream.

In the already-set and intersect case of a driver-hint, the previous
wiphy regdomain was not freed before being reset with a copy of the
cfg80211 regdomain.

Signed-off-by: Arik Nemtsov <[email protected]>
Acked-by: Luis R. Rodriguez <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Luis Henriques <[email protected]>
---
 net/wireless/reg.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 1afdf45db38f..ff7ffeb7947a 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1720,7 +1720,7 @@ static enum reg_request_treatment
 reg_process_hint_driver(struct wiphy *wiphy,
                        struct regulatory_request *driver_request)
 {
-       const struct ieee80211_regdomain *regd;
+       const struct ieee80211_regdomain *regd, *tmp;
        enum reg_request_treatment treatment;
 
        treatment = __reg_process_hint_driver(driver_request);
@@ -1740,7 +1740,10 @@ reg_process_hint_driver(struct wiphy *wiphy,
                        reg_free_request(driver_request);
                        return REG_REQ_IGNORE;
                }
+
+               tmp = get_wiphy_regdom(wiphy);
                rcu_assign_pointer(wiphy->regd, regd);
+               rcu_free_regdom(tmp);
        }
 
 
-- 
2.1.4

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