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| author | Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> | 2009-10-26 16:50:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-10-29 07:39:32 -0700 |
| commit | c36987e2ef32e1bb7850379515f21187cba44754 (patch) | |
| tree | 0b0a6b6a54c2a80de86426a74367ec4b1f089b61 /Documentation/intel_txt.txt | |
| parent | 2545f038f4af0ff9945d47c10f988418dda50140 (diff) | |
| download | linux-c36987e2ef32e1bb7850379515f21187cba44754.tar.bz2 | |
mm: don't call pte_unmap() against an improper pte
There are some places where we do like:
pte = pte_map();
do {
(do break in some conditions)
} while (pte++, ...);
pte_unmap(pte - 1);
But if the loop breaks at the first loop, pte_unmap() unmaps invalid pte.
This patch is a fix for this problem.
Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Reviewd-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/intel_txt.txt')
0 files changed, 0 insertions, 0 deletions