From: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Date: Thu, 26 Feb 2015 15:53:09 +0000 (+0300)
Subject: staging: vme: use image mutex for ioctl()
X-Git-Tag: omap-for-v4.2/o2_dc~155^2~138^2~548
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0cd189a42da07c89c809debc1f6a75f5ec0f5c43;p=pandora-kernel.git

staging: vme: use image mutex for ioctl()

This implements more granular locking in vme_user_ioctl() by using separate
locks for each devfs device.

This also provides a synchronization between vme_user_read(), vme_user_write()
and vme_user_ioctl().

Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Cc: Martyn Welch <martyn.welch@ge.com>
Cc: Igor Alekseev <igor.alekseev@itep.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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