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authorSven Neumann <s.neumann@raumfeld.com>2011-08-30 23:38:53 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-09-14 13:26:39 -0400
commiteac03e381957a05f3842ceb8de987a1025966ecf (patch)
tree5dfbfa366c63e481eb92b7f61dbabdd4f82b6ad3 /net/wireless/reg.h
parent56e6786e59cba2c714091ed53deffa6001a32841 (diff)
cfg80211: hold reg_mutex when updating regulatory
The function wiphy_update_regulatory() uses the static variable last_request and thus needs to be called with reg_mutex held. This is the case for all users in reg.c, but the function was exported for use by wiphy_register(), from where it is called without the lock being held. Fix this by making wiphy_update_regulatory() private and introducing regulatory_update() as a wrapper that acquires and holds the lock. Signed-off-by: Sven Neumann <s.neumann@raumfeld.com> Cc: John W. Linville <linville@tuxdriver.com> Cc: Luis R. Rodriguez <mcgrof@gmail.com> Cc: Daniel Mack <daniel@zonque.org> Cc: linux-wireless@vger.kernel.org Acked-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/wireless/reg.h')
-rw-r--r--net/wireless/reg.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/wireless/reg.h b/net/wireless/reg.h
index b67d1c3a2fb9..4a56799d868d 100644
--- a/net/wireless/reg.h
+++ b/net/wireless/reg.h
@@ -16,6 +16,8 @@ void regulatory_exit(void);
int set_regdom(const struct ieee80211_regdomain *rd);
+void regulatory_update(struct wiphy *wiphy, enum nl80211_reg_initiator setby);
+
/**
* regulatory_hint_found_beacon - hints a beacon was found on a channel
* @wiphy: the wireless device where the beacon was found on