Re: [PATCH] NFS: fix potential NULL deref in nfs_closedir()

[Christoph Hellwig]

On Sat, Mar 21, 2015 at 12:21:18AM -0400, Taesoo Kim wrote:
> From: Byoungyoung Lee <lifeasageek@xxxxxxxxx>
> 
> When filp->private_data is NULL, put_nfs_open_dir_context()
> deferences its pointer (fi->list, fi->cred), similar to what
> other file systems handle '.release' api (9p, cifs, btrfs, 
> ext4, ocfs2).

Why woud filp->private_data ever be NULL here?
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