linux-stable.git/drivers/platform, branch linux-3.10.y

platform/x86: acer-wmi: setup accelerometer when ACPI device was found

2017-06-20T12:04:46+00:00

commit f9ac89f5ad613b462339e845aeb8494646fd9be2 upstream.

The 98d610c3739a patch was introduced since v4.11-rc1 that it causes
that the accelerometer input device will not be created on workable
machines because the HID string comparing logic is wrong.

And, the patch doesn't prevent that the accelerometer input device
be created on the machines that have no BST0001. That's because
the acpi_get_devices() returns success even it didn't find any
match device.

This patch fixed the HID string comparing logic of BST0001 device.
And, it also makes sure that the acpi_get_devices() returns
acpi_handle for BST0001.

Fixes: 98d610c3739a ("acer-wmi: setup accelerometer when machine has appropriate notify event")
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=193761
Reported-by: Samuel Sieb 
Signed-off-by: "Lee, Chun-Yi" 
Signed-off-by: Andy Shevchenko 
Signed-off-by: Willy Tarreau

platform/x86: acer-wmi: setup accelerometer when machine has appropriate notify event

2017-06-20T12:04:46+00:00

commit 98d610c3739ac354319a6590b915f4624d9151e6 upstream.

The accelerometer event relies on the ACERWMID_EVENT_GUID notify.
So, this patch changes the codes to setup accelerometer input device
when detected ACERWMID_EVENT_GUID. It avoids that the accel input
device created on every Acer machines.

In addition, patch adds a clearly parsing logic of accelerometer hid
to acer_wmi_get_handle_cb callback function. It is positive matching
the "SENR" name with "BST0001" device to avoid non-supported hardware.

Reported-by: Bjørn Mork 
Cc: Darren Hart 
Signed-off-by: Chun-Yi Lee 
[andy: slightly massage commit message]
Signed-off-by: Andy Shevchenko 
Cc: Ben Hutchings 
Signed-off-by: Jiri Slaby 
Signed-off-by: Willy Tarreau

goldfish: Sanitize the broken interrupt handler

2017-06-07T22:47:00+00:00

commit 6cf18e6927c0b224f972e3042fb85770d63cb9f8 upstream.

This interrupt handler is broken in several ways:

  - It loops forever when the op code is not decodeable

  - It never returns IRQ_HANDLED because the only way to exit the loop
    returns IRQ_NONE unconditionally.

The whole concept of this is broken. Creating devices in an interrupt
handler is beyond any point of sanity.

Make it at least behave halfways sane so accidental users do not have to
deal with a hard to debug lockup.

Fixes: e809c22b8fb028 ("goldfish: add the goldfish virtual bus")
Reported-by: Gabriel C 
Signed-off-by: Thomas Gleixner 
Acked-by: Linus Torvalds 
Signed-off-by: Jiri Slaby 
Signed-off-by: Willy Tarreau

platform/x86: intel_mid_powerbtn: Set IRQ_ONESHOT

2017-06-07T22:46:57+00:00

commit 5a00b6c2438460b870a451f14593fc40d3c7edf6 upstream.

The commit 1c6c69525b40 ("genirq: Reject bogus threaded irq requests")
starts refusing misconfigured interrupt handlers. This makes
intel_mid_powerbtn not working anymore.

Add a mandatory flag to a threaded IRQ request in the driver.

Fixes: 1c6c69525b40 ("genirq: Reject bogus threaded irq requests")
Signed-off-by: Andy Shevchenko 
Signed-off-by: Willy Tarreau

hp-wmi: Fix wifi cannot be hard-unblocked

2016-08-27T09:40:36+00:00

commit fc8a601e1175ae351f662506030f9939cb7fdbfe upstream.

Several users reported wifi cannot be unblocked as discussed in [1].
This patch removes the use of the 2009 flag by BIOS but uses the actual
WMI function calls - it will be skipped if WMI reports unsupported.

[1] https://bugzilla.kernel.org/show_bug.cgi?id=69131

Signed-off-by: Alex Hung 
Tested-by: Evgenii Shatokhin 
Signed-off-by: Darren Hart 
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Willy Tarreau

intel_scu_ipcutil: underflow in scu_reg_access()

2016-02-25T19:57:49+00:00

commit b1d353ad3d5835b16724653b33c05124e1b5acf1 upstream.

"count" is controlled by the user and it can be negative.  Let's prevent
that by making it unsigned.  You have to have CAP_SYS_RAWIO to call this
function so the bug is not as serious as it could be.

Fixes: 5369c02d951a ('intel_scu_ipc: Utility driver for intel scu ipc')
Signed-off-by: Dan Carpenter 
Signed-off-by: Darren Hart 
Signed-off-by: Greg Kroah-Hartman

hp_accel: Add support for HP ZBook 15

2015-01-27T15:52:31+00:00

commit 6583659e0f92e38079a8dd081e0a1181a0f37747 upstream.

HP ZBook 15 laptop needs a non-standard mapping (x_inverted).

BugLink: http://bugzilla.opensuse.org/show_bug.cgi?id=905329
Signed-off-by: Dominique Leuenberger 
Signed-off-by: Takashi Iwai 
Signed-off-by: Darren Hart 
Signed-off-by: Greg Kroah-Hartman

dell-wmi: Fix access out of memory

2014-11-21T17:22:55+00:00

commit a666b6ffbc9b6705a3ced704f52c3fe9ea8bf959 upstream.

Without this patch, dell-wmi is trying to access elements of dynamically
allocated array without checking the array size. This can lead to memory
corruption or a kernel panic. This patch adds the missing checks for
array size.

Signed-off-by: Pali Rohár 
Signed-off-by: Darren Hart 
Signed-off-by: Greg Kroah-Hartman

acer-wmi: Add acpi_backlight=video quirk for the Acer KAV80

2014-11-14T16:48:01+00:00

commit 183fd8fcd7f8afb7ac5ec68f83194872f9fecc84 upstream.

The acpi-video backlight interface on the Acer KAV80 is broken, and worse
it causes the entire machine to slow down significantly after a suspend/resume.

Blacklist it, and use the acer-wmi backlight interface instead. Note that
the KAV80 is somewhat unique in that it is the only Acer model where we
fall back to acer-wmi after blacklisting, rather then using the native
(e.g. intel) backlight driver. This is done because there is no native
backlight interface on this model.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1128309
Signed-off-by: Hans de Goede 
Signed-off-by: Darren Hart 
Signed-off-by: Greg Kroah-Hartman

hp_accel: Add a new PnP ID HPQ6007 for new HP laptops

2014-02-06T19:08:16+00:00

commit b0ad4ff35d479a46a3b995a299db9aeb097acfce upstream.

The DriveGuard chips on the new HP laptops are with a new PnP ID
"HPQ6007".  It should be compatible with older chips.

Acked-by: Éric Piel 
Signed-off-by: Takashi Iwai 
Signed-off-by: Matthew Garrett 
Signed-off-by: Greg Kroah-Hartman