[PATCH] KVM: release anon file in failure path of vm creation

From: Liu Shuo <shuo.a.liu@intel.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: "Zhang Yanmin" <yanmin_zhang@linux.intel.com>,
	"He Bo" <bo.he@intel.com>, "Liu Shuo" <shuox.liu@gmail.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Radim Krčmář" <rkrcmar@redhat.com>
Subject: [PATCH] KVM: release anon file in failure path of vm creation
Date: Tue, 12 Jul 2016 17:38:42 +0800	[thread overview]
Message-ID: <1468316323-23835-1-git-send-email-shuo.a.liu@intel.com> (raw)

The failure of create debugfs of VM will return directly without release
the anon file. It will leak memory and file descriptors, even through
be not serious.

Signed-off-by: Liu Shuo <shuo.a.liu@intel.com>
---
 virt/kvm/kvm_main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 48bd520..8322154 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -49,6 +49,7 @@
 #include <linux/slab.h>
 #include <linux/sort.h>
 #include <linux/bsearch.h>
+#include <linux/syscalls.h>
 
 #include <asm/processor.h>
 #include <asm/io.h>
@@ -3067,6 +3068,7 @@ static int kvm_dev_ioctl_create_vm(unsigned long type)
 
 	if (kvm_create_vm_debugfs(kvm, r) < 0) {
 		kvm_put_kvm(kvm);
+		sys_close(r);
 		return -ENOMEM;
 	}
 
-- 
1.9.4
