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authorMonam Agarwal <monamagarwal123@gmail.com>2014-03-23 20:23:40 +0100
committerJohannes Berg <johannes.berg@intel.com>2014-04-09 10:55:30 +0200
commit34dd886c19547ea138634b98a615ccd1fe42cd20 (patch)
tree2e78b18b55c813f403404a0a2eaaed2eda8c9cf8 /net/wireless
parentmac80211: add vif to flush call (diff)
downloadlinux-34dd886c19547ea138634b98a615ccd1fe42cd20.tar.xz
linux-34dd886c19547ea138634b98a615ccd1fe42cd20.zip
cfg80211: regulatory: use RCU_INIT_POINTER
rcu_assign_pointer() ensures that the initialization of a structure is carried out before storing a pointer to that structure. However, in the case that NULL is assigned there's no structure to initialize so using RCU_INIT_POINTER instead is safe and more efficient. Signed-off-by: Monam Agarwal <monamagarwal123@gmail.com> [rewrite commit log] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/reg.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index f59aaac586f8..e0a746d19061 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -2594,7 +2594,7 @@ void wiphy_regulatory_deregister(struct wiphy *wiphy)
reg_num_devs_support_basehint--;
rcu_free_regdom(get_wiphy_regdom(wiphy));
- rcu_assign_pointer(wiphy->regd, NULL);
+ RCU_INIT_POINTER(wiphy->regd, NULL);
if (lr)
request_wiphy = wiphy_idx_to_wiphy(lr->wiphy_idx);