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authorLee, Chun-Yi <joeyli.kernel@gmail.com>2011-04-15 18:42:47 +0800
committerMatthew Garrett <mjg@redhat.com>2011-05-27 12:36:44 -0400
commitc2647b5e99c8ff1b3f535c7c84564cdc53214edf (patch)
tree7e2109c49d9a4cef393675986d5e668860311f06 /drivers/platform
parentbb3ce2020451bdebe5ceac770504f427724008a9 (diff)
downloadblackbird-op-linux-c2647b5e99c8ff1b3f535c7c84564cdc53214edf.tar.gz
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acer-wmi: does not allow negative number set to initial device state
The driver set module parameter value: mailled, threeg and brightness to BIOS by evaluate wmi method when driver was initialed. The default values for those parameters are -1, so, that will be better don't set negative value to BIOS. Cc: Carlos Corbacho <carlos@strangeworlds.co.uk> Cc: Matthew Garrett <mjg@redhat.com> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Lee, Chun-Yi <jlee@novell.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/x86/acer-wmi.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index fa8fa73f543e..0682ecb30746 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -961,10 +961,12 @@ static void __init acer_commandline_init(void)
* These will all fail silently if the value given is invalid, or the
* capability isn't available on the given interface
*/
- set_u32(mailled, ACER_CAP_MAILLED);
- if (!has_type_aa)
+ if (mailled >= 0)
+ set_u32(mailled, ACER_CAP_MAILLED);
+ if (!has_type_aa && threeg >= 0)
set_u32(threeg, ACER_CAP_THREEG);
- set_u32(brightness, ACER_CAP_BRIGHTNESS);
+ if (brightness >= 0)
+ set_u32(brightness, ACER_CAP_BRIGHTNESS);
}
/*
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