lkml.org 
[lkml]   [2014]   [Mar]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] net/mac80211: Use RCU_INIT_POINTER(x, NULL) in chan.c
Date
This patch replaces rcu_assign_pointer(x, NULL) with RCU_INIT_POINTER(x, NULL)

The rcu_assign_pointer() ensures that the initialization of a structure
is carried out before storing a pointer to that structure.
And in the case of the NULL pointer, there is no structure to initialize.
So, rcu_assign_pointer(p, NULL) can be safely converted to RCU_INIT_POINTER(p, NULL)

Signed-off-by: Monam Agarwal <monamagarwal123@gmail.com>
---
net/mac80211/chan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index bd1fd8e..b297bd3 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -392,7 +392,7 @@ static void ieee80211_unassign_vif_chanctx(struct ieee80211_sub_if_data *sdata,
lockdep_assert_held(&local->chanctx_mtx);

ctx->refcount--;
- rcu_assign_pointer(sdata->vif.chanctx_conf, NULL);
+ RCU_INIT_POINTER(sdata->vif.chanctx_conf, NULL);

sdata->vif.bss_conf.idle = true;

--
1.7.9.5


\
 
 \ /
  Last update: 2014-03-23 20:41    [W:0.036 / U:0.072 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site