diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2013-11-17 14:00:18 +0100 |
|---|---|---|
| committer | Matthew Garrett <matthew.garrett@nebula.com> | 2013-11-20 18:50:48 -0500 |
| commit | ddde708217af6d5fe43c0086247c05ed317076b4 (patch) | |
| tree | e696fcc1133096c7caccf7ce2718d76a14a6387d /drivers/platform/x86 | |
| parent | 2a92551845bbbc8421ba908cd14bbdf065e0f454 (diff) | |
dell-laptop: If there is no hwswitch, then clear all hw-controlled bits
To ensure we don't enter any hw-switch related code paths on machines without
a hw-switch.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Diffstat (limited to 'drivers/platform/x86')
| -rw-r--r-- | drivers/platform/x86/dell-laptop.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c index bae932b60bab..48fabf6b6ecb 100644 --- a/drivers/platform/x86/dell-laptop.c +++ b/drivers/platform/x86/dell-laptop.c @@ -548,6 +548,9 @@ static int __init dell_setup_rfkill(void) buffer->input[0] = 0x2; dell_send_request(buffer, 17, 11); hwswitch_state = buffer->output[1]; + /* If there is no hwswitch, then clear all hw-controlled bits */ + if (!(status & BIT(0))) + hwswitch_state &= ~7; release_buffer(); if ((status & (1<<2|1<<8)) == (1<<2|1<<8)) { |