fat: fix uninitialized variable

commit 963a7f4d3b90ee195b895ca06b95757fcba02d1a upstream.

syszbot produced this with a corrupted fs image.  In theory, however an IO
error would trigger this also.

This affects just an error report, so should not be a serious error.

Link: https://lkml.kernel.org/r/87r08wjsnh.fsf@mail.parknet.co.jp
Link: https://lkml.kernel.org/r/66ff2c95.050a0220.49194.03e9.GAE@google.com
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Reported-by: syzbot+ef0d7bc412553291aa86@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c
index 0cdd0fb9f742a09f9a32f0ada71dd25c888b72d4..9bc7d1602c15b75f724d00dcb14127cbee5c5ca2 100644 (file)
--- a/fs/fat/namei_vfat.c
+++ b/fs/fat/namei_vfat.c
@@ -1019,7 +1019,7 @@ error_inode:
        if (corrupt < 0) {
                fat_fs_error(new_dir->i_sb,
                             "%s: Filesystem corrupted (i_pos %lld)",
-                            __func__, sinfo.i_pos);
+                            __func__, new_i_pos);
        }
        goto out;
 }