Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e2baf4ed168589af8224d51f0ac50e65bcdee3f6
Commit:     e2baf4ed168589af8224d51f0ac50e65bcdee3f6
Parent:     ba609a9d97ba231c3d94443c50579ceb5fc33867
Author:     David Woodhouse <[EMAIL PROTECTED]>
AuthorDate: Tue Jul 3 16:51:19 2007 -0400
Committer:  David Woodhouse <[EMAIL PROTECTED]>
CommitDate: Wed Jul 4 10:24:29 2007 -0400

    [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 <[EMAIL PROTECTED]>
---
 fs/jffs2/readinode.c |   23 +++++++++--------------
 1 files changed, 9 insertions(+), 14 deletions(-)

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 @@ static void jffs2_kill_tn(struct jffs2_sb_info *c, struct 
jffs2_tmp_dnode_info *
  * 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- *         1 if the node is obsolete (because we can't mark it so yet)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 @@ static struct jffs2_raw_node_ref 
*jffs2_first_valid_node(struct jffs2_raw_node_r
  * 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 @@ static inline int read_direntry(struct jffs2_sb_info *c, 
struct jffs2_raw_node_r
  * 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 @@ static inline int read_dnode(struct jffs2_sb_info *c, 
struct jffs2_raw_node_ref
 {
        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 @@ static inline int read_dnode(struct jffs2_sb_info *c, 
struct jffs2_raw_node_ref
                /* 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 @@ static inline int read_dnode(struct jffs2_sb_info *c, 
struct jffs2_raw_node_ref
                        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 @@ static inline int read_dnode(struct jffs2_sb_info *c, 
struct jffs2_raw_node_ref
  * 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 @@ static int jffs2_get_inode_nodes(struct jffs2_sb_info 
*c, struct jffs2_inode_inf
                        }
 
                        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;
 
                }
-
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