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| author | NeilBrown <neilb@suse.de> | 2006-01-06 00:20:40 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-06 08:34:07 -0800 |
| commit | 1345b1d8adbdeceb1c871d9a4af5e2a700b341c6 (patch) | |
| tree | 0da1db7d273752ad5281db415e9245f3f3a63383 /drivers/md/bitmap.c | |
| parent | 7dd5d34c6c2da04e8cd0732e08b33cd3359e4bae (diff) | |
| download | lwn-1345b1d8adbdeceb1c871d9a4af5e2a700b341c6.tar.gz lwn-1345b1d8adbdeceb1c871d9a4af5e2a700b341c6.zip | |
[PATCH] md: define and use safe_put_page for md
md sometimes call put_page on NULL pointers (treating it like kfree). This is
not safe, so define and use a 'safe_put_page' which checks for NULL.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/md/bitmap.c')
| -rw-r--r-- | drivers/md/bitmap.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index abe415f0c039..ee4a3424a8a3 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -626,8 +626,7 @@ static void bitmap_file_unmap(struct bitmap *bitmap) kfree(map); kfree(attr); - if (sb_page) - put_page(sb_page); + safe_put_page(sb_page); } static void bitmap_stop_daemon(struct bitmap *bitmap); |