Re: [PATCH] udf: fix udf_add_free_space

From: Cyrill Gorcunov
Date: Sun Feb 10 2008 - 15:07:28 EST


[Cyrill Gorcunov - Sun, Feb 10, 2008 at 11:00:52PM +0300]
| [Marcin Slusarz - Sun, Feb 10, 2008 at 08:27:33PM +0100]
| | in commit 742ba02a51c8d0bf5446b154531179760c1ed0a2
| | (udf: create common function for changing free space counter)
| | by accident I reversed safety condition which lead to
| | null pointer dereference in case of media error
| | and wrong counting of free space in normal situation
| |
| | Signed-off-by: Marcin Slusarz <marcin.slusarz@xxxxxxxxx>
| | Cc: Jan Kara <jack@xxxxxxx>
| | ---
| | fs/udf/balloc.c | 2 +-
| | 1 files changed, 1 insertions(+), 1 deletions(-)
| |
| | diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c
| | index a95fcfe..1b809bd 100644
| | --- a/fs/udf/balloc.c
| | +++ b/fs/udf/balloc.c
| | @@ -145,7 +145,7 @@ static bool udf_add_free_space(struct udf_sb_info *sbi,
| | {
| | struct logicalVolIntegrityDesc *lvid;
| |
| | - if (sbi->s_lvid_bh)
| | + if (sbi->s_lvid_bh == NULL)
| | return false;
| |
| | lvid = (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;
| | --
|
| Marcin, actually you've confused me - i always thought the second case
| is the explicit form of the first ;)
|

oh my, it seems i've to go sleep RIGHT NOW - 'cause I'm skipping
self-obvious things, damn...

Marcin, all is OK - drop my message ;)

- Cyrill -
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