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| author | Monam Agarwal | 2014-03-23 20:21:43 +0100 |
|---|---|---|
| committer | Johannes Berg | 2014-04-09 10:55:30 +0200 |
| commit | 0c2bef4621c5feb5bda9068c9964b2e9acf57017 (patch) | |
| tree | 0c57534e45d0d072873dcab9b5fddf54b3fef6a7 /net/mac80211/util.c | |
| parent | cfg80211: regulatory: use RCU_INIT_POINTER (diff) | |
| download | kernel-qcow2-linux-0c2bef4621c5feb5bda9068c9964b2e9acf57017.tar.gz kernel-qcow2-linux-0c2bef4621c5feb5bda9068c9964b2e9acf57017.tar.xz kernel-qcow2-linux-0c2bef4621c5feb5bda9068c9964b2e9acf57017.zip | |
mac80211: 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>
[squash eight tiny patches, rewrite commit log]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/util.c')
| -rw-r--r-- | net/mac80211/util.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 5cf62ec74c14..73af7398850b 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1546,7 +1546,7 @@ int ieee80211_reconfig(struct ieee80211_local *local) WARN_ON(local->resuming); res = drv_add_interface(local, sdata); if (WARN_ON(res)) { - rcu_assign_pointer(local->monitor_sdata, NULL); + RCU_INIT_POINTER(local->monitor_sdata, NULL); synchronize_net(); kfree(sdata); } |