linux-kernel - [PATCH] x86: Use safe_halt() instead of halt() in acpi_idle_play

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Date:	Mon, 2 Apr 2012 20:56:17 +0200
From:	Boris Ostrovsky <boris.ostrovsky@....com>
To:	<x86@...nel.org>, <len.brown@...el.com>, <tony.luck@...il.com>,
	<konrad.wilk@...cle.com>
CC:	<linux-acpi@...r.kernel.org>,
	<linux-pm@...ts.linux-foundation.org>,
	<linux-kernel@...r.kernel.org>,
	Boris Ostrovsky <boris.ostrovsky@....com>
Subject: [PATCH] x86: Use safe_halt() instead of halt() in acpi_idle_play_dead()

Using halt() in acpi_idle_play_dead() breaks ia64 build. Use safe_halt()
instead.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@....com>
---
 drivers/acpi/processor_idle.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 6b1d32a..784f9a7 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -786,7 +786,7 @@ static int acpi_idle_play_dead(struct cpuidle_device *dev, int index)
 	while (1) {
 
 		if (cx->entry_method == ACPI_CSTATE_HALT)
-			halt();
+			safe_halt();
 		else if (cx->entry_method == ACPI_CSTATE_SYSTEMIO) {
 			inb(cx->address);
 			/* See comment in acpi_idle_do_entry() */
-- 
1.7.3.4


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