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cfg80211: regulatory: use RCU_INIT_POINTER

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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>
This commit is contained in:
Monam Agarwal 2014-03-24 00:53:40 +05:30 committed by Johannes Berg
parent 77be2c54c5
commit 34dd886c19
1 changed files with 1 additions and 1 deletions
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2
net/wireless/reg.c
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@ -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);