[PATCH] SVM: nSVM: fix resource leak on error path

[Alex Dewar]

In svm_set_nested_state(), if nested_svm_vmrun_msrpm() returns false,
then variables save and ctl will leak. Fix this.

Fixes: 772b81bb2f9b ("SVM: nSVM: setup nested msr permission bitmap on nested 
state load")
Signed-off-by: Alex Dewar <alex.dewa...@gmail.com>
---
 arch/x86/kvm/svm/nested.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c
index 598a769f1961..85f572cbabe4 100644
--- a/arch/x86/kvm/svm/nested.c
+++ b/arch/x86/kvm/svm/nested.c
@@ -1148,7 +1148,7 @@ static int svm_set_nested_state(struct kvm_vcpu *vcpu,
        nested_prepare_vmcb_control(svm);
 
        if (!nested_svm_vmrun_msrpm(svm))
-               return -EINVAL;
+               goto out_free;  /* ret == -EINVAL */
 
 out_set_gif:
        svm_set_gif(svm, !!(kvm_state->flags & KVM_STATE_NESTED_GIF_SET));
-- 
2.28.0