From 280562b2104c9a0ca7efc5e716b6452a7ba820fa Mon Sep 17 00:00:00 2001 From: "Artem B. Bityutskiy" Date: Wed, 17 Aug 2005 15:57:43 +0100 Subject: [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 Signed-off-by: Thomas Gleixner --- fs/jffs2/nodelist.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'fs/jffs2/nodelist.c') diff --git a/fs/jffs2/nodelist.c b/fs/jffs2/nodelist.c index 0393d27eafc..fd21f109fbd 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", -- cgit v1.2.3