linux-kernel - [PATCH] Platform / x86: Make fujitsu_laptop use acpi_bus_update

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Message-Id: <201011262255.20848.rjw@sisk.pl>
Date:	Fri, 26 Nov 2010 22:55:20 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Len Brown <lenb@...nel.org>
Cc:	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"Linux-pm mailing list" <linux-pm@...ts.linux-foundation.org>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	Maciej Rutecki <maciej.rutecki@...il.com>
Subject: [PATCH] Platform / x86: Make fujitsu_laptop use acpi_bus_update_power()

From: Rafael J. Wysocki <rjw@...k.pl>

Use the new function acpi_bus_update_power(), which is safer than
acpi_bus_get_power(), for getting device power state in
acpi_fujitsu_add().

Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
Reported-and-Tested-by: Sedat Dilek <sedat.dilek@...il.com>
---

Hi Len,

This patch should go after [11/13] in the "ACPI / PM: Rework power resources
management" series.  I hope Matthew won't mind if it goes in through your tree.

Thanks,
Rafael

---
 drivers/platform/x86/fujitsu-laptop.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux-2.6/drivers/platform/x86/fujitsu-laptop.c
===================================================================
--- linux-2.6.orig/drivers/platform/x86/fujitsu-laptop.c
+++ linux-2.6/drivers/platform/x86/fujitsu-laptop.c
@@ -689,7 +689,7 @@ static int acpi_fujitsu_add(struct acpi_
 	if (error)
 		goto err_free_input_dev;
 
-	result = acpi_bus_get_power(fujitsu->acpi_handle, &state);
+	result = acpi_bus_update_power(fujitsu->acpi_handle, &state);
 	if (result) {
 		printk(KERN_ERR "Error reading power state\n");
 		goto err_unregister_input_dev;
@@ -857,7 +857,7 @@ static int acpi_fujitsu_hotkey_add(struc
 	if (error)
 		goto err_free_input_dev;
 
-	result = acpi_bus_get_power(fujitsu_hotkey->acpi_handle, &state);
+	result = acpi_bus_update_power(fujitsu_hotkey->acpi_handle, &state);
 	if (result) {
 		printk(KERN_ERR "Error reading power state\n");
 		goto err_unregister_input_dev;
--
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