From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752476AbcEAMZs (ORCPT ); Sun, 1 May 2016 08:25:48 -0400 Received: from mail-pa0-f66.google.com ([209.85.220.66]:32890 "EHLO mail-pa0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752065AbcEAMZr (ORCPT ); Sun, 1 May 2016 08:25:47 -0400 From: Muhammad Falak R Wani To: Dmitry Torokhov Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] Input: use RCU_INIT_POINTER() when NULLing. Date: Sun, 1 May 2016 17:55:40 +0530 Message-Id: <1462105540-8835-1-git-send-email-falakreyaz@gmail.com> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It is safe to use RCU_INIT_POINTER() to NULL a pointer, instead of rcu_assign_pointer(). This results in slightly smaller/faster code. Signed-off-by: Muhammad Falak R Wani --- drivers/input/input.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/input.c b/drivers/input/input.c index b87ffbd..e59ac56 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -548,7 +548,7 @@ static void __input_release_device(struct input_handle *handle) grabber = rcu_dereference_protected(dev->grab, lockdep_is_held(&dev->mutex)); if (grabber == handle) { - rcu_assign_pointer(dev->grab, NULL); + RCU_INIT_POINTER(dev->grab, NULL); /* Make sure input_pass_event() notices that grab is gone */ synchronize_rcu(); -- 1.9.1