[patch 145/164] KVM: s390: Fix possible memory leak of in kvm_arch_vcpu_create()

[Greg KH]

2.6.33-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Wei Yongjun <yjwei@xxxxxxxxxxxxxx>

This patch fixed possible memory leak in kvm_arch_vcpu_create()
under s390, which would happen when kvm_arch_vcpu_create() fails.

Signed-off-by: Wei Yongjun <yjwei@xxxxxxxxxxxxxx>
Acked-by: Carsten Otte <cotte@xxxxxxxxxx>
Cc: stable@xxxxxxxxxx
Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
(cherry picked from commit 7b06bf2ffa15e119c7439ed0b024d44f66d7b605)
---
 arch/s390/kvm/kvm-s390.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -339,11 +339,13 @@ struct kvm_vcpu *kvm_arch_vcpu_create(st
 
 	rc = kvm_vcpu_init(vcpu, kvm, id);
 	if (rc)
-		goto out_free_cpu;
+		goto out_free_sie_block;
 	VM_EVENT(kvm, 3, "create cpu %d at %p, sie block at %p", id, vcpu,
 		 vcpu->arch.sie_block);
 
 	return vcpu;
+out_free_sie_block:
+	free_page((unsigned long)(vcpu->arch.sie_block));
 out_free_cpu:
 	kfree(vcpu);
 out_nomem:


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