diff options
| author | Monam Agarwal <monamagarwal123@gmail.com> | 2014-03-23 19:23:40 (GMT) |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-04-09 08:55:30 (GMT) |
| commit | 34dd886c19547ea138634b98a615ccd1fe42cd20 (patch) | |
| tree | 2e78b18b55c813f403404a0a2eaaed2eda8c9cf8 | |
| parent | 77be2c54c5bd26279abc13807398771d80cda37a (diff) | |
| download | linux-34dd886c19547ea138634b98a615ccd1fe42cd20.tar.xz | |
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>
| -rw-r--r-- | net/wireless/reg.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/wireless/reg.c b/net/wireless/reg.c index f59aaac..e0a746d 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); |