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| author | Artem B. Bityutskiy <dedekind@infradead.org> | 2005-08-17 15:57:43 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@mtd.linutronix.de> | 2005-11-06 20:29:56 +0100 |
| commit | 280562b2104c9a0ca7efc5e716b6452a7ba820fa (patch) | |
| tree | 6dcee70d0ec3da6fbb8afd9e05e6b73c1a46e97a /fs/jffs2/nodelist.c | |
| parent | 8d5df40954281a8e0f788b311f9c08f96e530ffa (diff) | |
| download | linux-280562b2104c9a0ca7efc5e716b6452a7ba820fa.tar.gz linux-280562b2104c9a0ca7efc5e716b6452a7ba820fa.tar.bz2 linux-280562b2104c9a0ca7efc5e716b6452a7ba820fa.zip | |
[JFFS2] Calculate CRC check starting point correctly
When data starts from the beginning of NAND page, 'len' must be zero, not
c->wbuf_page.
Thanks to Zoltan Sogor for reporting this problem.
Signed-off-by: Artem B. Bityutskiy <dedekind@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'fs/jffs2/nodelist.c')
| -rw-r--r-- | fs/jffs2/nodelist.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/jffs2/nodelist.c b/fs/jffs2/nodelist.c index 0393d27eafc7..fd21f109fbd2 100644 --- a/fs/jffs2/nodelist.c +++ b/fs/jffs2/nodelist.c @@ -7,7 +7,7 @@ * * For licensing information, see the file 'LICENCE' in this directory. * - * $Id: nodelist.c,v 1.110 2005/08/17 14:13:45 dedekind Exp $ + * $Id: nodelist.c,v 1.111 2005/08/17 14:57:39 dedekind Exp $ * */ @@ -413,7 +413,8 @@ static int check_node_data(struct jffs2_sb_info *c, struct jffs2_tmp_dnode_info /* Calculate how many bytes were already checked */ ofs = ref_offset(ref) + sizeof(struct jffs2_raw_inode); len = ofs & (c->wbuf_pagesize - 1); - len = c->wbuf_pagesize - len; + if (likely(len)) + len = c->wbuf_pagesize - len; if (len >= tn->csize) { JFFS2_DBG_READINODE("no need to check node at %#08x, data length %u, data starts at %#08x - it has already been checked.\n", |