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| author | Al Viro <viro@zeniv.linux.org.uk> | 2015-05-03 20:59:58 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-05-10 22:20:04 -0400 |
| commit | f7df08ee05db41c6d2ec498703401197f6b68373 (patch) | |
| tree | 1cefb331d2b16bda8a58ad1c07483580bef65f71 | |
| parent | ef1a3e7b9634cc68740eb1280309ac5e460b95f9 (diff) | |
| download | linux-f7df08ee05db41c6d2ec498703401197f6b68373.tar.bz2 | |
trailing_symlink: nd->depth massage, part 5
move increment of ->depth to the point where we'd discovered
that get_link() has not returned an error, adjust exits
accordingly.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | fs/namei.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/fs/namei.c b/fs/namei.c index cf5009b87c5a..5753f46d8321 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2009,8 +2009,11 @@ static int trailing_symlink(struct nameidata *nd) s = get_link(nd); if (unlikely(IS_ERR(s))) return PTR_ERR(s); - if (unlikely(!s)) + nd->depth++; + if (unlikely(!s)) { + nd->depth--; return 0; + } if (*s == '/') { if (!nd->root.mnt) set_root(nd); @@ -2020,12 +2023,14 @@ static int trailing_symlink(struct nameidata *nd) nd->flags |= LOOKUP_JUMPED; } nd->inode = nd->path.dentry->d_inode; - nd->depth++; error = link_path_walk(s, nd); - nd->depth--; - if (unlikely(error)) + if (unlikely(error)) { + nd->depth--; put_link(nd); - return error; + return error; + } + nd->depth--; + return 0; } static inline int lookup_last(struct nameidata *nd) |