From db0e066a986e025781dcd4c05dc4cf480ae884b6 Mon Sep 17 00:00:00 2001 From: "Luis R. Rodriguez" Date: Tue, 5 Nov 2013 09:18:13 -0800 Subject: cfg80211: pass the last_request to __set_regdom() last_request is RCU protected, since we're getting it on set_regdom() we might as well pass it to ensure the same request is being processed, otherwise there is a small race it could have changed. This makes processing of the request atomic. Signed-off-by: Luis R. Rodriguez Signed-off-by: Johannes Berg --- net/wireless/reg.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'net/wireless') diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 38c252f91086..ca11f31b3bec 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -2192,12 +2192,12 @@ static void print_regdomain_info(const struct ieee80211_regdomain *rd) } /* Takes ownership of rd only if it doesn't fail */ -static int __set_regdom(const struct ieee80211_regdomain *rd) +static int __set_regdom(const struct ieee80211_regdomain *rd, + struct regulatory_request *lr) { const struct ieee80211_regdomain *regd; const struct ieee80211_regdomain *intersected_rd = NULL; struct wiphy *request_wiphy; - struct regulatory_request *lr = get_last_request(); /* Some basic sanity checks first */ @@ -2323,7 +2323,7 @@ int set_regdom(const struct ieee80211_regdomain *rd) lr = get_last_request(); /* Note that this doesn't update the wiphys, this is done below */ - r = __set_regdom(rd); + r = __set_regdom(rd, lr); if (r) { if (r == -EALREADY) reg_set_request_processed(); -- cgit v1.2.3