[JFFS2] Fix readinode failure when read_dnode() detects CRC failure.
We should have stopped returning 1 from read_dnode() to indicate
failure. We can just mark the damn thing obsolete immediately. But I
missed a case where we don't.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c
index 12e83f6..7b36378 100644
--- a/fs/jffs2/readinode.c
+++ b/fs/jffs2/readinode.c
@@ -210,8 +210,7 @@
* offset, and the one with the smallest length will come first in the
* ordering.
*
- * Returns 0 if the node was inserted
- * 1 if the node is obsolete (because we can't mark it so yet)
+ * Returns 0 if the node was handled (including marking it obsolete)
* < 0 an if error occurred
*/
static int jffs2_add_tn_to_tree(struct jffs2_sb_info *c,
@@ -572,8 +571,7 @@
* Helper function for jffs2_get_inode_nodes().
* It is called every time an directory entry node is found.
*
- * Returns: 0 on succes;
- * 1 if the node should be marked obsolete;
+ * Returns: 0 on success;
* negative error code on failure.
*/
static inline int read_direntry(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *ref,
@@ -680,8 +678,7 @@
* Helper function for jffs2_get_inode_nodes().
* It is called every time an inode node is found.
*
- * Returns: 0 on success;
- * 1 if the node should be marked obsolete;
+ * Returns: 0 on success (possibly after marking a bad node obsolete);
* negative error code on failure.
*/
static inline int read_dnode(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *ref,
@@ -690,7 +687,7 @@
{
struct jffs2_tmp_dnode_info *tn;
uint32_t len, csize;
- int ret = 1;
+ int ret = 0;
uint32_t crc;
/* Obsoleted. This cannot happen, surely? dwmw2 20020308 */
@@ -719,8 +716,9 @@
/* Sanity checks */
if (unlikely(je32_to_cpu(rd->offset) > je32_to_cpu(rd->isize)) ||
unlikely(PAD(je32_to_cpu(rd->csize) + sizeof(*rd)) != PAD(je32_to_cpu(rd->totlen)))) {
- JFFS2_WARNING("inode node header CRC is corrupted at %#08x\n", ref_offset(ref));
- jffs2_dbg_dump_node(c, ref_offset(ref));
+ JFFS2_WARNING("inode node header CRC is corrupted at %#08x\n", ref_offset(ref));
+ jffs2_dbg_dump_node(c, ref_offset(ref));
+ jffs2_mark_node_obsolete(c, ref);
goto free_out;
}
@@ -775,6 +773,7 @@
if (len >= csize && unlikely(tn->partial_crc != je32_to_cpu(rd->data_crc))) {
JFFS2_NOTICE("wrong data CRC in data node at 0x%08x: read %#08x, calculated %#08x.\n",
ref_offset(ref), tn->partial_crc, je32_to_cpu(rd->data_crc));
+ jffs2_mark_node_obsolete(c, ref);
goto free_out;
}
@@ -854,7 +853,6 @@
* It is called every time an unknown node is found.
*
* Returns: 0 on success;
- * 1 if the node should be marked obsolete;
* negative error code on failure.
*/
static inline int read_unknown(struct jffs2_sb_info *c, struct jffs2_raw_node_ref *ref, struct jffs2_unknown_node *un)
@@ -1088,10 +1086,7 @@
}
err = read_unknown(c, ref, &node->u);
- if (err == 1) {
- jffs2_mark_node_obsolete(c, ref);
- break;
- } else if (unlikely(err))
+ if (unlikely(err))
goto free_out;
}
