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Date: Thu, 11 Oct 2012 09:59:20 +0900 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, alan@...rguk.ukuu.org.uk, Lin Ming <ming.m.lin@...el.com>, Aaron Lu <aaron.lu@...el.com>, Len Brown <len.brown@...el.com> Subject: [ 008/120] ACPI: run _OSC after ACPI_FULL_INITIALIZATION 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Lin Ming <ming.m.lin@...el.com> commit fc54ab72959edbf229b65ac74b2f122d799ca002 upstream. The _OSC method may exist in module level code, so it must be called after ACPI_FULL_INITIALIZATION On some new platforms with Zero-Power-Optical-Disk-Drive (ZPODD) support, this fix is necessary to save power. Signed-off-by: Lin Ming <ming.m.lin@...el.com> Tested-by: Aaron Lu <aaron.lu@...el.com> Signed-off-by: Len Brown <len.brown@...el.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/acpi/bus.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -954,8 +954,6 @@ static int __init acpi_bus_init(void) status = acpi_ec_ecdt_probe(); /* Ignore result. Not having an ECDT is not fatal. */ - acpi_bus_osc_support(); - status = acpi_initialize_objects(ACPI_FULL_INITIALIZATION); if (ACPI_FAILURE(status)) { printk(KERN_ERR PREFIX "Unable to initialize ACPI objects\n"); @@ -963,6 +961,12 @@ static int __init acpi_bus_init(void) } /* + * _OSC method may exist in module level code, + * so it must be run after ACPI_FULL_INITIALIZATION + */ + acpi_bus_osc_support(); + + /* * _PDC control method may load dynamic SSDT tables, * and we need to install the table handler before that. */ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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