From: Sam Ravnborg <sam@ravnborg.org>
Date: Sun, 27 Apr 2008 05:57:25 +0000 (-0700)
Subject: can: Fix copy_from_user() results interpretation
X-Git-Tag: v2.6.26-rc1~715^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3f91bd420a955803421f2db17b2e04aacfbb2bb8;p=pandora-kernel.git

can: Fix copy_from_user() results interpretation

Both copy_to_ and _from_user return the number of bytes, that failed to
reach their destination, not the 0/-EXXX values.

Based on patch from Pavel Emelyanov <xemul@openvz.org>

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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