UBIFS: improve inode dumping function

Teach 'dbg_dump_inode()' dump directory entries for directory inodes.
This requires few additional changes:
1. The 'c' argument of 'dbg_dump_inode()' cannot be const any more.
2. Users of 'dbg_dump_inode()' should not have 'tnc_mutex' locked.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/ubifs/tnc.c b/fs/ubifs/tnc.c
index 91b4213dde84..48b6ee6fa848 100644
--- a/fs/ubifs/tnc.c
+++ b/fs/ubifs/tnc.c
@@ -3337,9 +3337,10 @@ out_dump:
         ubifs_err("inode %lu has size %lld, but there are data at offset %lld "
                   "(data key %s)", (unsigned long)inode->i_ino, size,
                   ((loff_t)block) << UBIFS_BLOCK_SHIFT, DBGKEY(key));
+        mutex_unlock(&c->tnc_mutex);
         dbg_dump_inode(c, inode);
         dbg_dump_stack();
-        err = -EINVAL;
+        return -EINVAL;
 
 out_unlock:
         mutex_unlock(&c->tnc_mutex);