KVM: s390: Fix memory leak of vcpu->run

The s390 backend of kvm never calls kvm_vcpu_uninit. This causes
a memory leak of vcpu->run pages.
Lets call kvm_vcpu_uninit in kvm_arch_vcpu_destroy to free
the vcpu->run.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 3db9e5d..76f05dd 100644 (file)
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -198,6 +198,7 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
 {
        VCPU_EVENT(vcpu, 3, "%s", "free cpu");
        free_page((unsigned long)(vcpu->arch.sie_block));
+       kvm_vcpu_uninit(vcpu);
        kfree(vcpu);
 }
 
@@ -230,8 +231,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
 
 void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
 {
-       /* kvm common code refers to this, but does'nt call it */
-       BUG();
+       /* Nothing todo */
 }
 
 void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)