[linux-cifs-client] [PATCH 1/4] cifs: make cifs_lookup return a dentry

[Al Viro]

On Fri, May 21, 2010 at 02:25:14PM -0400, Jeff Layton wrote:
> cifs_lookup doesn't actually return a dentry. It instantiates the one
> that's passed in, but callers don't have any way to know if the lookup
> succeeded.

Huh?  Of course they do - ->lookup() has every right to do just that;
d_add() and return NULL is perfectly legitimate.