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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2009-11-22 21:54:46 +0100 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2009-11-22 21:54:46 +0100 |
| commit | c6c6b49c67a1768e82859e4dd0efbeb5e0452d87 (patch) | |
| tree | 3b69516e034453bd83325f2c13f177cb4ce2e4d6 | |
| parent | 8dd62ea2908c4f15d295fa05dd0b35e4afc36f38 (diff) | |
Do not fail if no PTE maps virtual address 0
* i386/intel/pmap.c (pmap_unmap_page_zero): Do not fail if no PTE maps
virtual address 0.
| -rw-r--r-- | i386/intel/pmap.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/i386/intel/pmap.c b/i386/intel/pmap.c index bc3acfc..c633fd9 100644 --- a/i386/intel/pmap.c +++ b/i386/intel/pmap.c @@ -2410,6 +2410,8 @@ pmap_unmap_page_zero () int *pte; pte = (int *) pmap_pte (kernel_pmap, 0); + if (!pte) + return; assert (pte); *pte = 0; INVALIDATE_TLB(kernel_pmap, 0, PAGE_SIZE); |