From 0c2bef4621c5feb5bda9068c9964b2e9acf57017 Mon Sep 17 00:00:00 2001 From: Monam Agarwal Date: Mon, 24 Mar 2014 00:51:43 +0530 Subject: 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 [squash eight tiny patches, rewrite commit log] Signed-off-by: Johannes Berg --- net/mac80211/debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/mac80211/debugfs.c') diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c index fa16e54980a1..0e963bc1ceac 100644 --- a/net/mac80211/debugfs.c +++ b/net/mac80211/debugfs.c @@ -128,7 +128,7 @@ static ssize_t sta_tx_latency_stat_write(struct file *file, if (!strcmp(buf, TX_LATENCY_DISABLED)) { if (!tx_latency) goto unlock; - rcu_assign_pointer(local->tx_latency, NULL); + RCU_INIT_POINTER(local->tx_latency, NULL); synchronize_rcu(); kfree(tx_latency); goto unlock; -- cgit v1.2.3