linux-kernel - [PATCH] ACPI / PM: Do not apply ACPI_SUCCESS() to acpi_bus_get

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Date:	Sun, 16 Dec 2012 14:32:06 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	ACPI Devel Maling List <linux-acpi@...r.kernel.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Linux PM list <linux-pm@...r.kernel.org>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>
Subject: [PATCH] ACPI / PM: Do not apply ACPI_SUCCESS() to acpi_bus_get_device() result

From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Since the return value of acpi_bus_get_device() is not of type
acpi_status, ACPI_SUCCESS() should not be used for checking its
return value.  Fix that.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
 drivers/acpi/device_pm.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Index: linux/drivers/acpi/device_pm.c
===================================================================
--- linux.orig/drivers/acpi/device_pm.c
+++ linux/drivers/acpi/device_pm.c
@@ -358,8 +358,7 @@ static struct acpi_device *acpi_dev_pm_g
 	acpi_handle handle = DEVICE_ACPI_HANDLE(dev);
 	struct acpi_device *adev;
 
-	return handle && ACPI_SUCCESS(acpi_bus_get_device(handle, &adev)) ?
-		adev : NULL;
+	return handle && !acpi_bus_get_device(handle, &adev) ? adev : NULL;
 }
 
 /**

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