From: Zhang Rui Date: Tue, 11 Mar 2014 14:40:27 +0000 (+0800) Subject: PNP / ACPI: proper handling of ACPI IO/Memory resource parsing failures X-Git-Tag: v3.14-rc7~6^2~1 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=89935315f192abf7068d0044cefc84f162c3c81f;p=pandora-kernel.git PNP / ACPI: proper handling of ACPI IO/Memory resource parsing failures Before commit b355cee88e3b (ACPI / resources: ignore invalid ACPI device resources), if acpi_dev_resource_memory()/acpi_dev_resource_io() returns false, it means the the resource is not a memeory/IO resource. But after commit b355cee88e3b, those functions return false if the given memory/IO resource entry is invalid (the length of the resource is zero). This breaks pnpacpi_allocated_resource(), because it now recognizes the invalid memory/io resources as resources of unknown type. Thus users see confusing warning messages on machines with zero length ACPI memory/IO resources. Fix the problem by rearranging pnpacpi_allocated_resource() so that it calls acpi_dev_resource_memory() for memory type and IO type resources only, respectively. Fixes: b355cee88e3b (ACPI / resources: ignore invalid ACPI device resources) Signed-off-by: Zhang Rui Reported-and-tested-by: Markus Trippelsdorf Reported-and-tested-by: Julian Wollrath Reported-and-tested-by: Paul Bolle [rjw: Changelog] Signed-off-by: Rafael J. Wysocki --- Reading git-diff-tree failed