diff options
Diffstat (limited to 'arch/nios2/mm/fault.c')
| -rw-r--r-- | arch/nios2/mm/fault.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/nios2/mm/fault.c b/arch/nios2/mm/fault.c index ec9d8a9c426f..964eac1a21d0 100644 --- a/arch/nios2/mm/fault.c +++ b/arch/nios2/mm/fault.c @@ -242,6 +242,7 @@ vmalloc_fault: */ int offset = pgd_index(address); pgd_t *pgd, *pgd_k; + p4d_t *p4d, *p4d_k; pud_t *pud, *pud_k; pmd_t *pmd, *pmd_k; pte_t *pte_k; @@ -253,8 +254,12 @@ vmalloc_fault: goto no_context; set_pgd(pgd, *pgd_k); - pud = pud_offset(pgd, address); - pud_k = pud_offset(pgd_k, address); + p4d = p4d_offset(pgd, address); + p4d_k = p4d_offset(pgd_k, address); + if (!p4d_present(*p4d_k)) + goto no_context; + pud = pud_offset(p4d, address); + pud_k = pud_offset(p4d_k, address); if (!pud_present(*pud_k)) goto no_context; pmd = pmd_offset(pud, address); |