From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sun, 15 Nov 2015 09:40:36 +0000 (+0100)
Subject: KVM-async_pf: Delete an unnecessary check before the function call "kmem_cache_destroy"
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=4f52696a6c4d9b1449c462546f1318935c6973db;p=openwrt%2Fstaging%2Fblogic.git

KVM-async_pf: Delete an unnecessary check before the function call "kmem_cache_destroy"

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 <elfring@users.sourceforge.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index 77d42be6970e..353159922456 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;
 }