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KVM: PPC: Book3S HV: Release lock on page-out failure path

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When migrate_vma_setup() fails in kvmppc_svm_page_out(),
release kvm->arch.uvmem_lock before returning.

Fixes: ca9f494267 ("KVM: PPC: Book3S HV: Support for running secure guests")
Signed-off-by: Bharata B Rao <bharata@linux.ibm.com>
Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This commit is contained in:
Bharata B Rao 2020-01-22 10:25:42 +05:30 committed by Paul Mackerras
parent 3a43970d55
commit e032e3b55b
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/kvm/book3s_hv_uvmem.c
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@ -571,7 +571,7 @@ kvmppc_svm_page_out(struct vm_area_struct *vma, unsigned long start,
ret = migrate_vma_setup(&mig); ret = migrate_vma_setup(&mig);
if (ret) if (ret)
return ret; goto out;
spage = migrate_pfn_to_page(*mig.src); spage = migrate_pfn_to_page(*mig.src);
if (!spage || !(*mig.src & MIGRATE_PFN_MIGRATE)) if (!spage || !(*mig.src & MIGRATE_PFN_MIGRATE))