diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/m68k/mm/kmap.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/m68k/mm/kmap.c b/arch/m68k/mm/kmap.c index 85ad19a0ac7..43ffab04872 100644 --- a/arch/m68k/mm/kmap.c +++ b/arch/m68k/mm/kmap.c @@ -259,13 +259,15 @@ void __iounmap(void *addr, unsigned long size) if (CPU_IS_020_OR_030) { int pmd_off = (virtaddr/PTRTREESIZE) & 15; + int pmd_type = pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK; - if ((pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK) == _PAGE_PRESENT) { + if (pmd_type == _PAGE_PRESENT) { pmd_dir->pmd[pmd_off] = 0; virtaddr += PTRTREESIZE; size -= PTRTREESIZE; continue; - } + } else if (pmd_type == 0) + continue; } if (pmd_bad(*pmd_dir)) { |