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intel_menlo: extract return values using PTR_ERR 

Need to extract errors using PTR_ERR macro and
process accordingly.thermal_cooling_device_register
returning NULL means that CONFIG_THERMAL=n and in that
case no need to create symbolic links.

Signed-off-by: Thomas Sujith <sujith.thomas@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Thomas Sujith 2008-02-15 01:05:23 -05:00 committed by Len Brown
parent 43ff39f2f6
commit 69f6b8dd6b
1 changed files with 7 additions and 4 deletions
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11
drivers/misc/intel_menlow.c
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@ -170,10 +170,13 @@ static int intel_menlow_memory_add(struct acpi_device *device)
cdev = thermal_cooling_device_register("Memory controller", device,
&memory_cooling_ops);
acpi_driver_data(device) = cdev;
if (!cdev)
result = -ENODEV;
else {
if (IS_ERR(cdev)) {
result = PTR_ERR(cdev);
goto end;
}
if (cdev) {
acpi_driver_data(device) = cdev;
result = sysfs_create_link(&device->dev.kobj,
&cdev->device.kobj, "thermal_cooling");
if (result)