hp-wmi: limit hotkey enable

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[ Upstream commit 8a1513b493 ]

Do not write initialize magic on systems that do not have
feature query 0xb. Fixes Bug #82451.

Redefine FEATURE_QUERY to align with 0xb and FEATURE2 with 0xd
for code clearity.

Add a new test function, hp_wmi_bios_2008_later() & simplify
hp_wmi_bios_2009_later(), which fixes a bug in cases where
an improper value is returned. Probably also fixes Bug #69131.

Add missing __init tag.

Signed-off-by: Kyle Evans <kvans32@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

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Kyle Evans 2015-09-11 10:40:17 -05:00 • committed by Sasha Levin

parent 2889a072fc

commit 3cd079e563

1 changed files with 20 additions and 11 deletions

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drivers/platform/x86/hp-wmi.c

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