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alistair23-linux/drivers/pnp/pnpacpi
Rafael J. Wysocki a8d2239630 PNP / ACPI: Do not return errors if _DIS or _SRS are not present
The ACPI PNP subsystem returns errors from pnpacpi_set_resources()
and pnpacpi_disable_resources() if the _SRS or _DIS methods are not
present, respectively, but it should not do that, because those
methods are optional.  For this reason, modify pnpacpi_set_resources()
and pnpacpi_disable_resources(), respectively, to ignore missing _SRS
or _DIS.

This problem has been uncovered by commit 202317a573 (ACPI / scan:
Add acpi_device objects for all device nodes in the namespace) and
manifested itself by causing serial port suspend to fail on some
systems.

Fixes: 202317a573 (ACPI / scan: Add acpi_device objects for all device nodes in the namespace)
References: https://bugzilla.kernel.org/show_bug.cgi?id=74371
Reported-by: wxg4net <wxg4net@gmail.com>
Reported-and-tested-by: <nonproffessional@gmail.com>
Cc: 3.14+ <stable@vger.kernel.org> # 3.14+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-30 22:36:33 +02:00
..
Kconfig ACPI: always enable CONFIG_PNPACPI on CONFIG_ACPI kernels 2007-02-15 22:38:04 -05:00
Makefile PNP: Compile all pnp built-in stuff in one module namespace 2010-10-27 02:23:44 -04:00
core.c PNP / ACPI: Do not return errors if _DIS or _SRS are not present 2014-04-30 22:36:33 +02:00
pnpacpi.h ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
rsparser.c PNP / ACPI: proper handling of ACPI IO/Memory resource parsing failures 2014-03-11 21:22:10 +01:00