From f20877d94a74557b7c28b4ed8920d834c31e0ea5 Mon Sep 17 00:00:00 2001
From: "J. R. Okajima" <hooanon05@yahoo.co.jp>
Date: Fri, 14 Jan 2011 03:56:04 +0000
Subject: [PATCH] fs: fix do_last error case when need_reval_dot

When open(2) without O_DIRECTORY opens an existing dir, it should return
EISDIR. In do_last(), the variable 'error' is initialized EISDIR, but it
is changed by d_revalidate() which returns any positive to represent
'the target dir is valid.'

Should we keep and return the initialized 'error' in this case.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
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