From mboxrd@z Thu Jan 1 00:00:00 1970 From: SF Markus Elfring Subject: [PATCH 1/1] fs-eventpoll: Deletion of unnecessary checks before the function call "__pm_stay_awake" Date: Tue, 18 Nov 2014 09:35:46 +0100 Message-ID: <546B04E2.80000@users.sourceforge.net> References: <5307CAA2.8060406@users.sourceforge.net> <530A086E.8010901@users.sourceforge.net> <530A72AA.3000601@users.sourceforge.net> <530B5FB6.6010207@users.sourceforge.net> <530C5E18.1020800@users.sourceforge.net> <530CD2C4.4050903@users.sourceforge.net> <530CF8FF.8080600@users.sourceforge.net> <530DD06F.4090703@users.sourceforge.net> <5317A59D.4@users.so urceforge.net> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Cc: LKML , kernel-janitors@vger.kernel.org, Coccinelle To: Alexander Viro , linux-fsdevel@vger.kernel.org Return-path: In-Reply-To: <5317A59D.4@users.sourceforge.net> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org From: Markus Elfring Date: Tue, 18 Nov 2014 09:27:16 +0100 The __pm_stay_awake() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring --- fs/eventpoll.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/fs/eventpoll.c b/fs/eventpoll.c index 7bcfff9..eec2e85 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -555,8 +555,7 @@ static inline void ep_pm_stay_awake(struct epitem *epi) { struct wakeup_source *ws = ep_wakeup_source(epi); - if (ws) - __pm_stay_awake(ws); + __pm_stay_awake(ws); } static inline bool ep_has_wakeup_source(struct epitem *epi) @@ -571,8 +570,7 @@ static inline void ep_pm_stay_awake_rcu(struct epitem *epi) rcu_read_lock(); ws = rcu_dereference(epi->ws); - if (ws) - __pm_stay_awake(ws); + __pm_stay_awake(ws); rcu_read_unlock(); } -- 2.1.3