From: Xiaotian Feng <dfeng@redhat.com>
Date: Tue, 29 Mar 2011 08:34:32 +0000 (+0800)
Subject: x86, microcode: Unregister syscore_ops after microcode unloaded
X-Git-Tag: v2.6.39-rc2~19^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4ac5fc6a3e4d90120f292526bcaa5ee182a7411b;p=pandora-kernel.git

x86, microcode: Unregister syscore_ops after microcode unloaded

Currently, microcode doesn't unregister syscore_ops after it's
unloaded. So if we modprobe then rmmod microcode, the stale
microcode syscore_ops info will stay on syscore_ops_list.

Later when we're trying to reboot/halt/shutdown the machine, kernel
will panic on syscore_shutdown().

With the patch applied, I can reboot/halt/shutdown my machine successfully.

Signed-off-by: Xiaotian Feng <dfeng@redhat.com>
Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
LKML-Reference: <1301387672-23661-1-git-send-email-dfeng@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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