From 776cdc11b3b0fc21e34600e22abe1c8209d2f3f0 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Wed, 28 Mar 2012 09:03:26 -0700
Subject: hwmon: (acpi_power_meter) Fix compiler warning seen in some
 configurations

In some configurations, BUG() does not result in an endless loop but returns
to the caller. This results in the following compiler warning:

drivers/hwmon/acpi_power_meter.c: In function 'show_str':
drivers/hwmon/acpi_power_meter.c:380: warning: 'val' may be used uninitialized in this function

Fix the warning by setting val to an empty string after BUG().

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>

diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c
index 145f135..9140236 100644
--- a/drivers/hwmon/acpi_power_meter.c
+++ b/drivers/hwmon/acpi_power_meter.c
@@ -391,6 +391,7 @@ static ssize_t show_str(struct device *dev,
 		break;
 	default:
 		BUG();
+		val = "";
 	}
 
 	return sprintf(buf, "%s\n", val);
-- 
cgit v0.10.2