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authorLuis R. Rodriguez <mcgrof@qca.qualcomm.com>2011-11-29 01:47:16 +0400
committerJohn W. Linville <linville@tuxdriver.com>2011-11-30 23:16:33 +0400
commit0bac71af6e66dc798bf07d0c0dd14ee5503362f9 (patch)
tree3a30fb610fd45c531acf4c5e955656787f9016e0 /net/wireless
parenta042994dd377d86bff9446ee76151ceb6267c9ba (diff)
downloadlinux-0bac71af6e66dc798bf07d0c0dd14ee5503362f9.tar.xz
cfg80211: amend regulatory NULL dereference fix
Johannes' patch for "cfg80211: fix regulatory NULL dereference" broke user regulaotry hints and it did not address the fact that last_request was left populated even if the previous regulatory hint was stale due to the wiphy disappearing. Fix user reguluatory hints by only bailing out if for those regulatory hints where a request_wiphy is expected. The stale last_request considerations are addressed through the previous fixes on last_request where we reset the last_request to a static world regdom request upon reset_regdomains(). In this case though we further enhance the effect by simply restoring reguluatory settings completely. Cc: stable@vger.kernel.org Cc: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/reg.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 0ec40715a67b..074c1122ce42 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -2049,8 +2049,10 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
}
request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
- if (!request_wiphy) {
- reg_set_request_processed();
+ if (!request_wiphy &&
+ (last_request->initiator == NL80211_REGDOM_SET_BY_DRIVER ||
+ last_request->initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE)) {
+ schedule_delayed_work(&reg_timeout, 0);
return -ENODEV;
}