From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 10 Jan 2012 07:30:37 +0000 (+0900)
Subject: sh: Ensure IRQs are enabled across do_notify_resume().
X-Git-Tag: v3.3-rc1~91^2~6^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6330c04bb455e10eb6cc6d2552a593af54c6dd96;p=pandora-kernel.git

sh: Ensure IRQs are enabled across do_notify_resume().

do_notify_resume() can trigger the freezer via the try_to_freeze() path
(both explicitly through a redundant call in do_signal() or via
get_signal_to_deliver()). That IRQs were disabled across this callsite
became apparent with the might_sleep() introduction in try_to_freeze() by
Tejun in a0acae0e886d44bd5ce6d2f173c1ace0fcf0d9f6, resulting in:

	BUG: sleeping function called from invalid context at include/linux/freezer.h:45
	in_atomic(): 0, irqs_disabled(): 1, pid: 819, name: ntpd
	no locks held by ntpd/819.
	Stack: (0x9c81be80 to 0x9c81c000)
	...

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---

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