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| author |   Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2006-07-13 23:01:50 +0900 |
|---|---|---|
| committer |   Ralf Baechle <ralf@linux-mips.org> | 2006-07-13 21:26:22 +0100 |
| commit | f4dee85e2c6a7d7adf7ea4d6d3053a41c78175b7 (patch) | |
| tree | 59bb468f05b99adbdbcef01195cff622585a337f /arch/mips | |
| parent | [MIPS] vr41xx: Update workpad setup function (diff) | |
| download | linux-dev-f4dee85e2c6a7d7adf7ea4d6d3053a41c78175b7.tar.xz linux-dev-f4dee85e2c6a7d7adf7ea4d6d3053a41c78175b7.zip | |
[MIPS] sparsemem: fix crash in show_mem
With sparsemem, pfn should be checked by pfn_valid() before pfn_to_page().
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/mm/pgtable.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/mips/mm/pgtable.c b/arch/mips/mm/pgtable.c index 792c6eb44232..c93aa6cbcaca 100644 --- a/arch/mips/mm/pgtable.c +++ b/arch/mips/mm/pgtable.c @@ -15,6 +15,8 @@ void show_mem(void) printk("Free swap: %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10)); pfn = max_mapnr; while (pfn-- > 0) { + if (!pfn_valid(pfn)) + continue; page = pfn_to_page(pfn); total++; if (PageHighMem(page)) |