[PATCH 1/2] KVM: PPC: BOOK4S HV: Fix memslot rollback in H_SVM_INIT_START

[Ritesh Harjani (IBM)]

If registering a memslot with the ultravisor fails,
kvmppc_h_svm_init_start() is supposed to undo the memslots it has
already registered. The loop walks them with "m", however it wrongly
passes "memslot" instead (which failed to get registered).

Fix the loop by passing "m" instead, the memslot which was registered
successfully, for rollback from the beginning.

Fixes: 2027a24a75ce ("KVM: PPC: Book3S HV: Disable page merging in 
H_SVM_INIT_START")
Signed-off-by: Ritesh Harjani (IBM) <ritesh.l...@gmail.com>
---
 arch/powerpc/kvm/book3s_hv_uvmem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kvm/book3s_hv_uvmem.c 
b/arch/powerpc/kvm/book3s_hv_uvmem.c
index 463aef870c4e..190f64d992d8 100644
--- a/arch/powerpc/kvm/book3s_hv_uvmem.c
+++ b/arch/powerpc/kvm/book3s_hv_uvmem.c
@@ -497,7 +497,7 @@ unsigned long kvmppc_h_svm_init_start(struct kvm *kvm)
                kvm_for_each_memslot(m, bkt, slots) {
                        if (m == memslot)
                                break;
-                       __kvmppc_uvmem_memslot_delete(kvm, memslot);
+                       __kvmppc_uvmem_memslot_delete(kvm, m);
                }
        }

--
2.39.5