From bdf6cbf17923c08dafca70f0231817de1f9d1f30 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 18 Apr 2015 20:21:40 -0400
Subject: [PATCH] link_path_walk: final preparations to killing recursion

reduce the number of returns in there - turn all places
where it returns zero into goto OK and places where it
returns non-zero into goto Err.  The only non-trivial
detail is that all breaks in the loop are guaranteed
to be with non-zero err.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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