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Commit 34dd886c authored by Monam Agarwal's avatar Monam Agarwal Committed by Johannes Berg
Browse files

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: default avatarMonam Agarwal <monamagarwal123@gmail.com>
[rewrite commit log]
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 77be2c54

net/wireless/reg.c

+1 −1
Original line number Diff line number Diff line
@@ -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);