From: SF Markus Elfring Date: Sun, 15 Nov 2015 09:45:34 +0000 Subject: [PATCH] KVM-async_pf: Delete an unnecessary check before the function call "kmem_cache_destroy" Message-Id: <5648543E.1000202@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: Gleb Natapov , Paolo Bonzini Cc: kvm@vger.kernel.org, LKML , kernel-janitors@vger.kernel.org, Julia Lawall From: Markus Elfring Date: Sun, 15 Nov 2015 10:40:36 +0100 The kmem_cache_destroy() 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 --- virt/kvm/async_pf.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c index 77d42be..3531599 100644 --- a/virt/kvm/async_pf.c +++ b/virt/kvm/async_pf.c @@ -57,8 +57,7 @@ int kvm_async_pf_init(void) void kvm_async_pf_deinit(void) { - if (async_pf_cache) - kmem_cache_destroy(async_pf_cache); + kmem_cache_destroy(async_pf_cache); async_pf_cache = NULL; } -- 2.6.2