[PATCH 2/2] KVM: selftests: Free the VM when NX hugepage disabling is denied

[Gokul K <gokul02k@gmail.com>]

run_test() returns as soon as it has confirmed that disabling NX huge
pages fails with -EPERM, without freeing the VM created a few lines
earlier.

This is not an obscure path.  nx_huge_pages_test.sh runs the test a
second time without CAP_SYS_BOOT for any non-root user, and main() calls
run_test() with disable_nx_huge_pages=true on its second invocation, so
an ordinary run of the wrapper script always takes it.

Free the VM before returning.

Fixes: b774da3f2e57 ("KVM: selftests: Test disabling NX hugepages on a VM")
Signed-off-by: Gokul K <gokul02k@gmail.com>
---
 tools/testing/selftests/kvm/x86/nx_huge_pages_test.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/kvm/x86/nx_huge_pages_test.c b/tools/testing/selftests/kvm/x86/nx_huge_pages_test.c
index 70950067b989..49b70c05daec 100644
--- a/tools/testing/selftests/kvm/x86/nx_huge_pages_test.c
+++ b/tools/testing/selftests/kvm/x86/nx_huge_pages_test.c
@@ -120,6 +120,7 @@ void run_test(int reclaim_period_ms, bool disable_nx_huge_pages,
 		} else {
 			TEST_ASSERT(r == -1 && errno == EPERM,
 				    "This process should not have permission to disable NX huge pages");
+			kvm_vm_free(vm);
 			return;
 		}
 	}
-- 
2.54.0