diff options
| author | Dmitry Shmidt <dimitrysh@google.com> | 2011-12-19 12:32:21 -0800 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-01-04 14:30:39 -0500 |
| commit | cee0bec58a922976a5f4d70081a3b2fd73e108e9 (patch) | |
| tree | 8eab2a655bfb1f210e2e9682ded92a54d35b426c | |
| parent | b423db5b356749e3e39faad607d387cd4c1a9d30 (diff) | |
wireless: Protect regdomain change by mutex
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | net/wireless/reg.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/wireless/reg.c b/net/wireless/reg.c index c45c8b772dd..58d39376603 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -1830,6 +1830,7 @@ static void restore_custom_reg_settings(struct wiphy *wiphy) static void restore_regulatory_settings(bool reset_user) { char alpha2[2]; + char world_alpha2[2]; struct reg_beacon *reg_beacon, *btmp; struct regulatory_request *reg_request, *tmp; LIST_HEAD(tmp_reg_req_list); @@ -1881,6 +1882,8 @@ static void restore_regulatory_settings(bool reset_user) /* First restore to the basic regulatory settings */ cfg80211_regdomain = cfg80211_world_regdom; + world_alpha2[0] = cfg80211_regdomain->alpha2[0]; + world_alpha2[1] = cfg80211_regdomain->alpha2[1]; list_for_each_entry(rdev, &cfg80211_rdev_list, list) { if (rdev->wiphy.flags & WIPHY_FLAG_CUSTOM_REGULATORY) @@ -1890,7 +1893,7 @@ static void restore_regulatory_settings(bool reset_user) mutex_unlock(®_mutex); mutex_unlock(&cfg80211_mutex); - regulatory_hint_core(cfg80211_regdomain->alpha2); + regulatory_hint_core(world_alpha2); /* * This restores the ieee80211_regdom module parameter |