Don't lock when holding led_mtx, instead use AcpiOsQueueForExecution to defer the locking.
Don't lock when holding led_mtx, instead use AcpiOsQueueForExecution to defer
the locking.

Idea taken from: acpi_asus(4)

Approved by:	philip
Reported by:	avatar
		Gordon Bergling <gbergling@0xfce3.net>
MFC after:	1 week

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