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ACPI: Use the return result of ACPI lid notifier chain correctly

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On some laptops it will return NOTIFY_OK(non-zero) when calling the ACPI LID
notifier. Then it is used as the result of ACPI LID resume function, which
will complain the following warning message in course of suspend/resume:

     >PM: Device PNP0C0D:00 failed to resume: error 1

This patch is to eliminate the above warning message.

http://bugzilla.kernel.org/show_bug.cgi?id=14782

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Zhao Yakui 2009-12-15 22:01:57 +08:00 committed by Len Brown
parent 22763c5cf3
commit 13c199c0d0
1 changed files with 7 additions and 0 deletions
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7
drivers/acpi/button.c
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@ -282,6 +282,13 @@ static int acpi_lid_send_state(struct acpi_device *device)
if (ret == NOTIFY_DONE)
ret = blocking_notifier_call_chain(&acpi_lid_notifier, state,
device);
if (ret == NOTIFY_DONE || ret == NOTIFY_OK) {
/*
* It is also regarded as success if the notifier_chain
* returns NOTIFY_OK or NOTIFY_DONE.
*/
ret = 0;
}
return ret;
}