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authorIlan Peer <ilan.peer@intel.com>2014-01-14 15:17:23 +0200
committerJohannes Berg <johannes.berg@intel.com>2014-02-04 21:48:14 +0100
commit772f0389338cfcf96da1c178046dc7e1649ab554 (patch)
tree6d4f1c6ab6feeddf2f82159d6764e91c62c532cd /net/wireless/reg.c
parent52512072738c851896c8bfa31938eba1e9b9bc62 (diff)
downloadlinux-772f0389338cfcf96da1c178046dc7e1649ab554.tar.bz2
cfg80211: fix few minor issues in reg_process_hint()
Fix the following issues in reg_process_hint(): 1. Add verification that wiphy is valid before processing NL80211_REGDOMAIN_SET_BY_COUNTRY_IE. 2. Free the request in case of invalid initiator. 3. Remove WARN_ON check on reg_request->alpha2 as it is not a pointer. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/reg.c')
-rw-r--r--net/wireless/reg.c19
1 files changed, 10 insertions, 9 deletions
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 9b897fca7487..484facf00510 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1683,17 +1683,9 @@ static void reg_process_hint(struct regulatory_request *reg_request)
struct wiphy *wiphy = NULL;
enum reg_request_treatment treatment;
- if (WARN_ON(!reg_request->alpha2))
- return;
-
if (reg_request->wiphy_idx != WIPHY_IDX_INVALID)
wiphy = wiphy_idx_to_wiphy(reg_request->wiphy_idx);
- if (reg_request->initiator == NL80211_REGDOM_SET_BY_DRIVER && !wiphy) {
- kfree(reg_request);
- return;
- }
-
switch (reg_request->initiator) {
case NL80211_REGDOM_SET_BY_CORE:
reg_process_hint_core(reg_request);
@@ -1706,20 +1698,29 @@ static void reg_process_hint(struct regulatory_request *reg_request)
schedule_delayed_work(&reg_timeout, msecs_to_jiffies(3142));
return;
case NL80211_REGDOM_SET_BY_DRIVER:
+ if (!wiphy)
+ goto out_free;
treatment = reg_process_hint_driver(wiphy, reg_request);
break;
case NL80211_REGDOM_SET_BY_COUNTRY_IE:
+ if (!wiphy)
+ goto out_free;
treatment = reg_process_hint_country_ie(wiphy, reg_request);
break;
default:
WARN(1, "invalid initiator %d\n", reg_request->initiator);
- return;
+ goto out_free;
}
/* This is required so that the orig_* parameters are saved */
if (treatment == REG_REQ_ALREADY_SET && wiphy &&
wiphy->regulatory_flags & REGULATORY_STRICT_REG)
wiphy_update_regulatory(wiphy, reg_request->initiator);
+
+ return;
+
+out_free:
+ kfree(reg_request);
}
/*