From mboxrd@z Thu Jan 1 00:00:00 1970 From: SF Markus Elfring Date: Sun, 16 Nov 2014 12:34:23 +0000 Subject: [PATCH 1/1] kprobes: Deletion of an unnecessary check before the function call "module_put" Message-Id: <546899CF.8020808@users.sourceforge.net> List-Id: 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.sourceforge.net> In-Reply-To: <5317A59D.4@users.sourceforge.net> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: cocci@systeme.lip6.fr From: Markus Elfring Date: Sun, 16 Nov 2014 12:20:31 +0100 The module_put() 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 --- kernel/kprobes.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 3995f54..f1e7d45 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -1527,8 +1527,7 @@ int register_kprobe(struct kprobe *p) out: mutex_unlock(&kprobe_mutex); - if (probed_mod) - module_put(probed_mod); + module_put(probed_mod); return ret; } -- 2.1.3