Re: [PATCH 3/5]acpi:glue.c Fix warning: variable 'ret' set but notused

From: Justin P. Mattock
Date: Tue Jun 29 2010 - 17:53:36 EST


On 06/29/2010 08:47 AM, David Howells wrote:
Justin P. Mattock<justinmattock@xxxxxxxxx> wrote:

+ 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;
+ }

The if-statement should be correctly indented (it's inside another
if-body, so needs to be one more tab over) and there needs to be a space
before the else.

You should probably split your printks up so they don't exceed 80 chars too,
for example:

printk(KERN_WARNING
"dev%d: Failed to create physical_node: %d\n",
status, pn);

Also 'status' is probably the wrong thing to print as the number in "dev%d".
If it worked, that should be unconditionally AE_OK, I think. Can you not use
dev_warn() or similar instead or printk?

David



o.k. heres another go at this.. this goes through, using dev_warn
but am uncertain about using these three for the right info dev, %p, dev_acpi

but give it a look whenever you have the time, and let me know
then I'll go from there..



From 34485b5709dc9ad18c57be8c672236580300e05c Mon Sep 17 00:00:00 2001
From: Justin P. Mattock <justinmattock@xxxxxxxxx>
Date: Tue, 29 Jun 2010 14:47:42 -0700
Subject: [PATCH ]ACPI:glue.c
Signed-off-by: Justin P. Mattock <justinmattock@xxxxxxxxx>

---
drivers/acpi/glue.c | 15 ++++++++++++---
1 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 4af6301..69ca24d 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 +161,20 @@ 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) {
+ dev_warn(dev, "dev:%p Failed to create firmware_node: %d\n",
+ acpi_dev, fn);
+
+ } else if (pn) {
+ dev_warn(dev, "dev:%p Failed to create physical_node: %d\n",
+ acpi_dev, pn);
+ return AE_ERROR;
+ }
if (acpi_dev->wakeup.flags.valid) {
device_set_wakeup_capable(dev, true);
device_set_wakeup_enable(dev,
--
1.7.1.rc1.21.gf3bd6


Justin P. Mattock
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