From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Date: Wed, 25 Aug 2010 19:19:53 +0000 (-0700)
Subject: xenfs/xenbus: report partial reads/writes correctly
X-Git-Tag: v2.6.38-rc2~22^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fb27cfbcbd2865b0e731c4aae47df71778da805e;p=pandora-kernel.git

xenfs/xenbus: report partial reads/writes correctly

copy_(to|from)_user return the number of uncopied bytes, so a successful
return is 0, and any non-zero result indicates some degree of failure.

Reported-by: "Jun Zhu (Intern)" <Jun.Zhu@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
---

Reading git-diff-tree failed