[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>
diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c
index 6d5adab..6f1e4a7 100644
--- a/fs/jffs2/readinode.c
+++ b/fs/jffs2/readinode.c
@@ -7,7 +7,7 @@
*
* For licensing information, see the file 'LICENCE' in this directory.
*
- * $Id: readinode.c,v 1.140 2005/08/17 13:46:23 dedekind Exp $
+ * $Id: readinode.c,v 1.141 2005/08/17 14:57:39 dedekind Exp $
*
*/
@@ -272,9 +272,9 @@
buf = (unsigned char *)rd + sizeof(*rd);
/* len will be the read data length */
len = min_t(uint32_t, rdlen - sizeof(*rd), csize);
-
- if (len)
- tn->partial_crc = crc = crc32(0, buf, len);
+ tn->partial_crc = crc32(0, buf, len);
+
+ JFFS2_DBG_READINODE("Calculates CRC (%#08x) for %d bytes, csize %d\n", tn->partial_crc, len, csize);
/* If we actually calculated the whole data CRC
* and it is wrong, drop the node. */
@@ -327,8 +327,8 @@
else // normal case...
tn->fn->size = je32_to_cpu(rd->dsize);
- JFFS2_DBG_READINODE("dnode @%08x: ver %u, offset %#04x, dsize %#04x\n",
- ref_offset(ref), je32_to_cpu(rd->version), je32_to_cpu(rd->offset), je32_to_cpu(rd->dsize));
+ JFFS2_DBG_READINODE("dnode @%08x: ver %u, offset %#04x, dsize %#04x, csize %#04x\n",
+ ref_offset(ref), je32_to_cpu(rd->version), je32_to_cpu(rd->offset), je32_to_cpu(rd->dsize), csize);
jffs2_add_tn_to_tree(tn, tnp);