linux-kernel - Re: [PATCH 3/5]acpi:glue.c Fix warning: variable 'ret' set but not used

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Date:	Mon, 28 Jun 2010 20:23:56 -0700
From:	"Justin P. Mattock" <justinmattock@...il.com>
To:	David Howells <dhowells@...hat.com>
CC:	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
	lenb@...nel.org
Subject: Re: [PATCH 3/5]acpi:glue.c Fix warning: variable 'ret' set but not
 used

o.k. after stepping out for a while.. I'm finally sitting down and 
looking at this. below is what I came up with.. hopefully it's in the 
area/vecinity of what might be a good idea for this(if not then let me know)



 From da5cfa463f29ff3fe4af3874649db0809e50ab96 Mon Sep 17 00:00:00 2001
From: Justin P. Mattock <justinmattock@...il.com>
Date: Mon, 28 Jun 2010 20:14:50 -0700
Subject: [PATCH] glue.c
  Signed-off-by: Justin P. Mattock <justinmattock@...il.com>

---
  drivers/acpi/glue.c |   12 +++++++++---
  1 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 4af6301..970d7f3 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -145,6 +145,7 @@ static int acpi_bind_one(struct device *dev, 
acpi_handle handle)
  {
  	struct acpi_device *acpi_dev;
  	acpi_status status;
+	int fn, pn;

  	if (dev->archdata.acpi_handle) {
  		dev_warn(dev, "Drivers changed 'acpi_handle'\n");
@@ -160,12 +161,17 @@ static int acpi_bind_one(struct device *dev, 
acpi_handle handle)

  	status = acpi_bus_get_device(handle, &acpi_dev);
  	if (!ACPI_FAILURE(status)) {
-		int ret;

-		ret = sysfs_create_link(&dev->kobj, &acpi_dev->dev.kobj,
+		fn = sysfs_create_link(&dev->kobj, &acpi_dev->dev.kobj,
  				"firmware_node");
-		ret = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj,
+		pn = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj,
  				"physical_node");
+	if (fn) {
+ 			printk(KERN_WARNING "dev%d: Failed to create firmware_node: %d\n", 
status, fn);
+	}else if (pn) {
+			printk(KERN_WARNING "dev%d: Failed to create physical_node: %d\n", 
status, pn);
+ 			return 0;
+		}
  		if (acpi_dev->wakeup.flags.valid) {
  			device_set_wakeup_capable(dev, true);
  			device_set_wakeup_enable(dev,
-- 
1.7.1.rc1.21.gf3bd6


keep in mind Im not exactly sure what should go into the printk
as for words to say, and functions, so I just used status, fn/pn
for the two because I was getting a not enough function error.

Justin P. Mattock
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