From 433b89cfb40f6bb6e6b6c899d06e40dd4f2ed100 Mon Sep 17 00:00:00 2001
From: Heinrich Schuchardt <xypron.glpk@gmx.de>
Date: Sun, 22 Feb 2015 00:18:49 +0100
Subject: [PATCH] Doc/memory-hotplug.txt: corrections and callback function
 prototype

Documentation/memory-hotplug.txt describes that a callback function can
be added to the notification chain by calling hotplug_memory_notifier().
The function prototype of the callback function is mssing. This missing
information is added by the patch.

The description of the arguments of the callback function is
reworked.

The constants for the event types are corrected.

The possible return values are explained.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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