NTFS: Fix a bug in fs/ntfs/index.c::ntfs_index_lookup(). When the returned

      index entry is in the index root, we forgot to set the @ir pointer in
      the index context.  Thanks for Yura Pakhuchiy for finding this bug.

Signed-off-by: Anton Altaparmakov <aia21@cantab.net>

2 files changed, 4 insertions, 0 deletions

diff --git a/fs/ntfs/ChangeLog b/fs/ntfs/ChangeLog
index 39dca6dced11..1168d3ed2bec 100644
--- a/fs/ntfs/ChangeLog
+++ b/fs/ntfs/ChangeLog
@@ -55,6 +55,9 @@ ToDo/Notes:
           length is zero.
         - Add runlist.[hc]::ntfs_rl_punch_nolock() which punches a caller
           specified hole into a runlist.
+        - Fix a bug in fs/ntfs/index.c::ntfs_index_lookup().  When the returned
+          index entry is in the index root, we forgot to set the @ir pointer in
+          the index context.  Thanks to Yura Pakhuchiy for finding this bug.
 
 2.1.23 - Implement extension of resident files and make writing safe as well as
          many bug fixes, cleanups, and enhancements...
diff --git a/fs/ntfs/index.c b/fs/ntfs/index.c
index 11fd5307d780..8f2d5727546f 100644
--- a/fs/ntfs/index.c
+++ b/fs/ntfs/index.c
@@ -205,6 +205,7 @@ int ntfs_index_lookup(const void *key, const int key_len,
                                 &ie->key, key_len)) {
 ir_done:
                         ictx->is_in_root = TRUE;
+                        ictx->ir = ir;
                         ictx->actx = actx;
                         ictx->base_ni = base_ni;
                         ictx->ia = NULL;