https://github.com/torvalds/linux
Revision a8d22396302b7e4e5f0a594c1c1594388c29edaf authored by Rafael J. Wysocki on 30 April 2014, 20:36:33 UTC, committed by Rafael J. Wysocki on 30 April 2014, 20:36:33 UTC
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 202317a573b2 (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: 202317a573b2 (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>
1 parent b3413af
History
Tip revision: a8d22396302b7e4e5f0a594c1c1594388c29edaf authored by Rafael J. Wysocki on 30 April 2014, 20:36:33 UTC
PNP / ACPI: Do not return errors if _DIS or _SRS are not present
Tip revision: a8d2239
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