diff options
| -rw-r--r-- | arch/arm/kvm/mmu.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c index d7e998c6a08f..80bb1e6c2c29 100644 --- a/arch/arm/kvm/mmu.c +++ b/arch/arm/kvm/mmu.c | |||
| @@ -144,6 +144,7 @@ static void unmap_range(struct kvm *kvm, pgd_t *pgdp, | |||
| 144 | while (addr < end) { | 144 | while (addr < end) { |
| 145 | pgd = pgdp + pgd_index(addr); | 145 | pgd = pgdp + pgd_index(addr); |
| 146 | pud = pud_offset(pgd, addr); | 146 | pud = pud_offset(pgd, addr); |
| 147 | pte = NULL; | ||
| 147 | if (pud_none(*pud)) { | 148 | if (pud_none(*pud)) { |
| 148 | addr = kvm_pud_addr_end(addr, end); | 149 | addr = kvm_pud_addr_end(addr, end); |
| 149 | continue; | 150 | continue; |
| @@ -174,7 +175,7 @@ static void unmap_range(struct kvm *kvm, pgd_t *pgdp, | |||
| 174 | /* | 175 | /* |
| 175 | * If the pmd entry is to be cleared, walk back up the ladder | 176 | * If the pmd entry is to be cleared, walk back up the ladder |
| 176 | */ | 177 | */ |
| 177 | if (kvm_pmd_huge(*pmd) || page_empty(pte)) { | 178 | if (kvm_pmd_huge(*pmd) || (pte && page_empty(pte))) { |
| 178 | clear_pmd_entry(kvm, pmd, addr); | 179 | clear_pmd_entry(kvm, pmd, addr); |
| 179 | next = kvm_pmd_addr_end(addr, end); | 180 | next = kvm_pmd_addr_end(addr, end); |
| 180 | if (page_empty(pmd) && !page_empty(pud)) { | 181 | if (page_empty(pmd) && !page_empty(pud)) { |
