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[JFFS2] Solve BUG caused by frag->node representing a hole in fragtree

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Signed-off-by: Artem B. Bityutskiy <dedekind@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Artem B. Bityutskiy 2005-08-22 10:07:12 +01:00 committed by Thomas Gleixner
parent 280562b210
commit f0507530cb
1 changed files with 2 additions and 2 deletions
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4
fs/jffs2/nodelist.c
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@ -7,7 +7,7 @@
*
* For licensing information, see the file 'LICENCE' in this directory.
*
* $Id: nodelist.c,v 1.111 2005/08/17 14:57:39 dedekind Exp $
* $Id: nodelist.c,v 1.112 2005/08/22 09:07:09 dedekind Exp $
*
*/
@ -80,7 +80,7 @@ void jffs2_truncate_fragtree(struct jffs2_sb_info *c, struct rb_root *list, uint
* REF_PRISTINE irrespective of its size.
*/
frag = frag_last(list);
if ((frag->ofs & (PAGE_CACHE_SIZE - 1)) == 0) {
if (frag->node && (frag->ofs & (PAGE_CACHE_SIZE - 1)) == 0) {
JFFS2_DBG_FRAGTREE2("marking the last fragment 0x%08x-0x%08x REF_PRISTINE.\n",
frag->ofs, frag->ofs + frag->size);
frag->node->raw->flash_offset = ref_offset(frag->node->raw) | REF_PRISTINE;