From: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Date: Wed, 30 Oct 2013 12:08:32 +0000 (+0200)
Subject: sysfs: return correct error code on unimplemented mmap()
X-Git-Tag: omap-for-v3.13/fixes-for-merge-window-take2~64^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1c1365e374bfadf908eae02cded7abb9e672c9d4;p=pandora-kernel.git

sysfs: return correct error code on unimplemented mmap()

Both POSIX.1-2008 and Linux Programmer's Manual have a dedicated return
error code for a case, when a file doesn't support mmap(), it's ENODEV.

This change replaces overloaded EINVAL with ENODEV in a situation
described above for sysfs binary files.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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