<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-stable.git/drivers/platform, branch v6.18.39</title>
<subtitle>Linux kernel stable tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/'/>
<entry>
<title>platform/x86: intel-hid: Protect ACPI notify handler against recursion</title>
<updated>2026-07-18T14:53:06+00:00</updated>
<author>
<name>HyeongJun An</name>
<email>sammiee5311@gmail.com</email>
</author>
<published>2026-06-05T17:49:05+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=86df6499dfd232fbc1c82c0d6eb9322ca67b8cd0'/>
<id>86df6499dfd232fbc1c82c0d6eb9322ca67b8cd0</id>
<content type='text'>
commit c085d82613d5618814b84406c8b2d64f1bc305e7 upstream.

Since commit e2ffcda16290 ("ACPI: OSL: Allow Notify () handlers to run on
all CPUs") ACPI notify handlers like the intel-hid notify_handler() may
run on multiple CPU cores racing with themselves.

On convertibles and detachables (matched by DMI chassis-type 31 and 32 in
dmi_auto_add_switch[]) the SW_TABLET_MODE input device is registered
lazily from notify_handler() on the first tablet-mode event, via
intel_hid_switches_setup(). When two such events race on different CPUs
both can pass the !priv-&gt;switches check and register the priv-&gt;switches
input device twice, resulting in a duplicate sysfs entry and a subsequent
NULL pointer dereference.

This is the same class of bug fixed by commit e075c3b13a0a ("platform/x86:
intel-vbtn: Protect ACPI notify handler against recursion") for the
sibling intel-vbtn driver.

Protect intel-hid notify_handler() from racing with itself with a mutex
to fix this.

Fixes: e2ffcda16290 ("ACPI: OSL: Allow Notify () handlers to run on all CPUs")
Cc: stable@vger.kernel.org
Signed-off-by: HyeongJun An &lt;sammiee5311@gmail.com&gt;
Link: https://patch.msgid.link/20260605174905.131095-1-sammiee5311@gmail.com
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit c085d82613d5618814b84406c8b2d64f1bc305e7 upstream.

Since commit e2ffcda16290 ("ACPI: OSL: Allow Notify () handlers to run on
all CPUs") ACPI notify handlers like the intel-hid notify_handler() may
run on multiple CPU cores racing with themselves.

On convertibles and detachables (matched by DMI chassis-type 31 and 32 in
dmi_auto_add_switch[]) the SW_TABLET_MODE input device is registered
lazily from notify_handler() on the first tablet-mode event, via
intel_hid_switches_setup(). When two such events race on different CPUs
both can pass the !priv-&gt;switches check and register the priv-&gt;switches
input device twice, resulting in a duplicate sysfs entry and a subsequent
NULL pointer dereference.

This is the same class of bug fixed by commit e075c3b13a0a ("platform/x86:
intel-vbtn: Protect ACPI notify handler against recursion") for the
sibling intel-vbtn driver.

Protect intel-hid notify_handler() from racing with itself with a mutex
to fix this.

Fixes: e2ffcda16290 ("ACPI: OSL: Allow Notify () handlers to run on all CPUs")
Cc: stable@vger.kernel.org
Signed-off-by: HyeongJun An &lt;sammiee5311@gmail.com&gt;
Link: https://patch.msgid.link/20260605174905.131095-1-sammiee5311@gmail.com
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>platform/x86/intel/vsec: Fix enable_cnt imbalance on PCIe error recovery</title>
<updated>2026-06-09T10:28:50+00:00</updated>
<author>
<name>Lukas Wunner</name>
<email>lukas@wunner.de</email>
</author>
<published>2026-05-29T16:59:26+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=81181a39bde9ad5b44a1b2d68702da6a8c84a565'/>
<id>81181a39bde9ad5b44a1b2d68702da6a8c84a565</id>
<content type='text'>
[ Upstream commit 348ccc754d8939e21ca5956ff45720b81d6e407f ]

After a PCIe Uncorrectable Error has been reported by a device with
Intel Vendor Specific Extended Capabilities and has been recovered
through a Secondary Bus Reset, its driver calls intel_vsec_pci_probe()
to rescan and reinitialize VSECs.

intel_vsec_pci_probe() invokes pcim_enable_device() and thereby adds
another devm action which calls pcim_disable_device() on driver unbind.

So once the driver unbinds, pcim_disable_device() will be called as many
times as an Uncorrectable Error occurred, plus one.  This will lead to
an enable_cnt imbalance on driver unbind.

Additionally, since commit dc957ab6aa05 ("platform/x86/intel/vsec: Add
private data for per-device data"), a devm_kzalloc() allocation is
leaked on every Uncorrectable Error.

Avoid by splitting the VSEC rescan out of intel_vsec_pci_probe() into a
separate helper and calling that on PCIe error recovery.

Fixes: 936874b77dd0 ("platform/x86/intel/vsec: Add PCI error recovery support to Intel PMT")
Signed-off-by: Lukas Wunner &lt;lukas@wunner.de&gt;
Cc: stable@vger.kernel.org  # v6.0+
Link: https://patch.msgid.link/bd594d09fa866dc51dddc9a447c3b23f9b1402cc.1778736835.git.lukas@wunner.de
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 348ccc754d8939e21ca5956ff45720b81d6e407f ]

After a PCIe Uncorrectable Error has been reported by a device with
Intel Vendor Specific Extended Capabilities and has been recovered
through a Secondary Bus Reset, its driver calls intel_vsec_pci_probe()
to rescan and reinitialize VSECs.

intel_vsec_pci_probe() invokes pcim_enable_device() and thereby adds
another devm action which calls pcim_disable_device() on driver unbind.

So once the driver unbinds, pcim_disable_device() will be called as many
times as an Uncorrectable Error occurred, plus one.  This will lead to
an enable_cnt imbalance on driver unbind.

Additionally, since commit dc957ab6aa05 ("platform/x86/intel/vsec: Add
private data for per-device data"), a devm_kzalloc() allocation is
leaked on every Uncorrectable Error.

Avoid by splitting the VSEC rescan out of intel_vsec_pci_probe() into a
separate helper and calling that on PCIe error recovery.

Fixes: 936874b77dd0 ("platform/x86/intel/vsec: Add PCI error recovery support to Intel PMT")
Signed-off-by: Lukas Wunner &lt;lukas@wunner.de&gt;
Cc: stable@vger.kernel.org  # v6.0+
Link: https://patch.msgid.link/bd594d09fa866dc51dddc9a447c3b23f9b1402cc.1778736835.git.lukas@wunner.de
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>platform/x86/intel/vsec: Make driver_data info const</title>
<updated>2026-06-09T10:28:49+00:00</updated>
<author>
<name>David E. Box</name>
<email>david.e.box@linux.intel.com</email>
</author>
<published>2026-05-29T16:59:25+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=1730c91a8b9a319e272558a40be08b4d936f4078'/>
<id>1730c91a8b9a319e272558a40be08b4d936f4078</id>
<content type='text'>
[ Upstream commit 9577c74c96f88d807d1ba005adbf5952e7127e55 ]

Treat PCI id-&gt;driver_data (intel_vsec_platform_info) as read-only by making
vsec_priv-&gt;info a const pointer and updating all function signatures to
accept const intel_vsec_platform_info *.

This improves const-correctness and clarifies that the platform info data
from the driver_data table is not meant to be modified at runtime.

No functional changes intended.

Signed-off-by: David E. Box &lt;david.e.box@linux.intel.com&gt;
Reviewed-by: Michael J. Ruhl &lt;michael.j.ruhl@intel.com&gt;
Link: https://patch.msgid.link/20260313015202.3660072-3-david.e.box@linux.intel.com
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Stable-dep-of: 348ccc754d89 ("platform/x86/intel/vsec: Fix enable_cnt imbalance on PCIe error recovery")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 9577c74c96f88d807d1ba005adbf5952e7127e55 ]

Treat PCI id-&gt;driver_data (intel_vsec_platform_info) as read-only by making
vsec_priv-&gt;info a const pointer and updating all function signatures to
accept const intel_vsec_platform_info *.

This improves const-correctness and clarifies that the platform info data
from the driver_data table is not meant to be modified at runtime.

No functional changes intended.

Signed-off-by: David E. Box &lt;david.e.box@linux.intel.com&gt;
Reviewed-by: Michael J. Ruhl &lt;michael.j.ruhl@intel.com&gt;
Link: https://patch.msgid.link/20260313015202.3660072-3-david.e.box@linux.intel.com
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Stable-dep-of: 348ccc754d89 ("platform/x86/intel/vsec: Fix enable_cnt imbalance on PCIe error recovery")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>platform/x86/intel/vsec: Refactor base_addr handling</title>
<updated>2026-06-09T10:28:49+00:00</updated>
<author>
<name>David E. Box</name>
<email>david.e.box@linux.intel.com</email>
</author>
<published>2026-05-29T16:59:24+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=4b0e87f9b50ff5136228b3c30dee6b399c9b473f'/>
<id>4b0e87f9b50ff5136228b3c30dee6b399c9b473f</id>
<content type='text'>
[ Upstream commit 904b333fc51cc045941df9656302449a0fc9978e ]

The base_addr field in intel_vsec_platform_info was originally added to
support devices that emulate PCI VSEC capabilities in MMIO. Previously,
the code would check at registration time whether base_addr was set,
falling back to the PCI BAR if not.

Refactor this by making base_addr an explicit function parameter. This
clarifies ownership of the value and removes conditional logic from
intel_vsec_add_dev(). It also enables making intel_vsec_platform_info
const in a later patch, since the function no longer needs to write to
info-&gt;base_addr.

No functional change intended.

Signed-off-by: David E. Box &lt;david.e.box@linux.intel.com&gt;
Reviewed-by: Michael J. Ruhl &lt;michael.j.ruhl@intel.com&gt;
Link: https://patch.msgid.link/20260313015202.3660072-2-david.e.box@linux.intel.com
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Stable-dep-of: 348ccc754d89 ("platform/x86/intel/vsec: Fix enable_cnt imbalance on PCIe error recovery")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 904b333fc51cc045941df9656302449a0fc9978e ]

The base_addr field in intel_vsec_platform_info was originally added to
support devices that emulate PCI VSEC capabilities in MMIO. Previously,
the code would check at registration time whether base_addr was set,
falling back to the PCI BAR if not.

Refactor this by making base_addr an explicit function parameter. This
clarifies ownership of the value and removes conditional logic from
intel_vsec_add_dev(). It also enables making intel_vsec_platform_info
const in a later patch, since the function no longer needs to write to
info-&gt;base_addr.

No functional change intended.

Signed-off-by: David E. Box &lt;david.e.box@linux.intel.com&gt;
Reviewed-by: Michael J. Ruhl &lt;michael.j.ruhl@intel.com&gt;
Link: https://patch.msgid.link/20260313015202.3660072-2-david.e.box@linux.intel.com
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Stable-dep-of: 348ccc754d89 ("platform/x86/intel/vsec: Fix enable_cnt imbalance on PCIe error recovery")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>platform/x86: intel-vbtn: Check ACPI_HANDLE() against NULL</title>
<updated>2026-06-01T15:51:04+00:00</updated>
<author>
<name>Rafael J. Wysocki</name>
<email>rafael.j.wysocki@intel.com</email>
</author>
<published>2026-05-12T15:16:22+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=09deb063eecf43b91b04401f7452c58f1b9cd453'/>
<id>09deb063eecf43b91b04401f7452c58f1b9cd453</id>
<content type='text'>
[ Upstream commit a9f305c5a355efeb240d406d378491d9eec02d07 ]

Every platform driver can be forced to match a device that doesn't match
its list of device IDs because of device_match_driver_override(), so
platform drivers that rely on the existence of a device's ACPI companion
object need to verify its presence.

Accordingly, add a requisite ACPI_HANDLE() check against NULL to the
platform/x86 intel-vbtn driver.

Fixes: 26173179fae1 ("platform/x86: intel-vbtn: Eval VBDL after registering our notifier")
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Reviewed-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Link: https://patch.msgid.link/3426431.aeNJFYEL58@rafael.j.wysocki
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit a9f305c5a355efeb240d406d378491d9eec02d07 ]

Every platform driver can be forced to match a device that doesn't match
its list of device IDs because of device_match_driver_override(), so
platform drivers that rely on the existence of a device's ACPI companion
object need to verify its presence.

Accordingly, add a requisite ACPI_HANDLE() check against NULL to the
platform/x86 intel-vbtn driver.

Fixes: 26173179fae1 ("platform/x86: intel-vbtn: Eval VBDL after registering our notifier")
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Reviewed-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Link: https://patch.msgid.link/3426431.aeNJFYEL58@rafael.j.wysocki
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>platform/x86: intel-hid: Check ACPI_HANDLE() against NULL</title>
<updated>2026-06-01T15:51:04+00:00</updated>
<author>
<name>Rafael J. Wysocki</name>
<email>rafael.j.wysocki@intel.com</email>
</author>
<published>2026-05-12T15:13:28+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=f6dfd64bfd9b20e7adda533ed3cf3bed528ae4e5'/>
<id>f6dfd64bfd9b20e7adda533ed3cf3bed528ae4e5</id>
<content type='text'>
[ Upstream commit 5c69e090ae5dd93d910f70db0796357080707d26 ]

Every platform driver can be forced to match a device that doesn't match
its list of device IDs because of device_match_driver_override(), so
platform drivers that rely on the existence of a device's ACPI companion
object need to verify its presence.

Accordingly, add a requisite ACPI_HANDLE() check against NULL to the
platform/x86 intel-hid driver.

Fixes: ecc83e52b28c ("intel-hid: new hid event driver for hotkeys")
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Reviewed-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Link: https://patch.msgid.link/1971512.tdWV9SEqCh@rafael.j.wysocki
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 5c69e090ae5dd93d910f70db0796357080707d26 ]

Every platform driver can be forced to match a device that doesn't match
its list of device IDs because of device_match_driver_override(), so
platform drivers that rely on the existence of a device's ACPI companion
object need to verify its presence.

Accordingly, add a requisite ACPI_HANDLE() check against NULL to the
platform/x86 intel-hid driver.

Fixes: ecc83e52b28c ("intel-hid: new hid event driver for hotkeys")
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Reviewed-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Link: https://patch.msgid.link/1971512.tdWV9SEqCh@rafael.j.wysocki
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>platform/x86: hp_accel: Check ACPI_COMPANION() against NULL</title>
<updated>2026-06-01T15:51:04+00:00</updated>
<author>
<name>Rafael J. Wysocki</name>
<email>rafael.j.wysocki@intel.com</email>
</author>
<published>2026-05-12T15:12:40+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=ed864a7b881c82fd2ce74695afc3fccfab6fbe15'/>
<id>ed864a7b881c82fd2ce74695afc3fccfab6fbe15</id>
<content type='text'>
[ Upstream commit abfbe5ee8ae89f1f5449790423d5dd3e423545bd ]

Every platform driver can be forced to match a device that doesn't match
its list of device IDs because of device_match_driver_override(), so
platform drivers that rely on the existence of a device's ACPI companion
object need to verify its presence.

Accordingly, add a requisite ACPI_COMPANION() check against NULL to the
platform/x86 hp_accel driver.

Fixes: 8ebcb6c94c71 ("platform/x86: hp_accel: Convert to be a platform driver")
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Reviewed-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Link: https://patch.msgid.link/2425918.ElGaqSPkdT@rafael.j.wysocki
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit abfbe5ee8ae89f1f5449790423d5dd3e423545bd ]

Every platform driver can be forced to match a device that doesn't match
its list of device IDs because of device_match_driver_override(), so
platform drivers that rely on the existence of a device's ACPI companion
object need to verify its presence.

Accordingly, add a requisite ACPI_COMPANION() check against NULL to the
platform/x86 hp_accel driver.

Fixes: 8ebcb6c94c71 ("platform/x86: hp_accel: Convert to be a platform driver")
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Reviewed-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Link: https://patch.msgid.link/2425918.ElGaqSPkdT@rafael.j.wysocki
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>platform/x86: adv_swbutton: Check ACPI_HANDLE() against NULL</title>
<updated>2026-06-01T15:51:04+00:00</updated>
<author>
<name>Rafael J. Wysocki</name>
<email>rafael.j.wysocki@intel.com</email>
</author>
<published>2026-05-12T15:11:49+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=7ea5aad8d351a8791b86f49bdc39ec67e277c35c'/>
<id>7ea5aad8d351a8791b86f49bdc39ec67e277c35c</id>
<content type='text'>
[ Upstream commit e7a9a6ea40e352cd7977f6a8c80bdeadf65ad838 ]

Every platform driver can be forced to match a device that doesn't match
its list of device IDs because of device_match_driver_override(), so
platform drivers that rely on the existence of a device's ACPI companion
object need to verify its presence.

Accordingly, add a requisite ACPI_HANDLE() check against NULL to the
platform/x86 adv_swbutton driver.

Fixes: 3d904005f686 ("platform/x86: add support for Advantech software defined button")
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Reviewed-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Link: https://patch.msgid.link/5115425.31r3eYUQgx@rafael.j.wysocki
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit e7a9a6ea40e352cd7977f6a8c80bdeadf65ad838 ]

Every platform driver can be forced to match a device that doesn't match
its list of device IDs because of device_match_driver_override(), so
platform drivers that rely on the existence of a device's ACPI companion
object need to verify its presence.

Accordingly, add a requisite ACPI_HANDLE() check against NULL to the
platform/x86 adv_swbutton driver.

Fixes: 3d904005f686 ("platform/x86: add support for Advantech software defined button")
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Reviewed-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Link: https://patch.msgid.link/5115425.31r3eYUQgx@rafael.j.wysocki
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>platform/surface: aggregator_registry: omit battery &amp; AC nodes on Surface Laptop 7</title>
<updated>2026-06-01T15:51:04+00:00</updated>
<author>
<name>Oliver White</name>
<email>oliverjwhite07@gmail.com</email>
</author>
<published>2026-04-09T03:43:47+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=098419a4b0623a195ab1d88cfebf4a9f96a7598d'/>
<id>098419a4b0623a195ab1d88cfebf4a9f96a7598d</id>
<content type='text'>
[ Upstream commit 0488073a6c84571dd3cffe581a4a73a5fceb099d ]

Surface Laptop 7 exposes battery and AC status via Qualcomm PMIC GLINK
qcom_battmgr. Registering the standard SSAM battery and AC client
devices on this platform causes duplicate power-supply devices to
appear.

Drop the SSAM battery and AC nodes from the Surface Laptop 7 registry
group so that only the qcom_battmgr power supplies are instantiated.

Fixes: b27622f13172 ("platform/surface: Add OF support")
Signed-off-by: Oliver White &lt;oliverjwhite07@gmail.com&gt;
Link: https://patch.msgid.link/20260409034347.17381-1-oliverjwhite07@gmail.com
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 0488073a6c84571dd3cffe581a4a73a5fceb099d ]

Surface Laptop 7 exposes battery and AC status via Qualcomm PMIC GLINK
qcom_battmgr. Registering the standard SSAM battery and AC client
devices on this platform causes duplicate power-supply devices to
appear.

Drop the SSAM battery and AC nodes from the Surface Laptop 7 registry
group so that only the qcom_battmgr power supplies are instantiated.

Fixes: b27622f13172 ("platform/surface: Add OF support")
Signed-off-by: Oliver White &lt;oliverjwhite07@gmail.com&gt;
Link: https://patch.msgid.link/20260409034347.17381-1-oliverjwhite07@gmail.com
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>platform/x86: lenovo-wmi-other: Fix tunable_attr_01 struct members</title>
<updated>2026-05-23T11:07:17+00:00</updated>
<author>
<name>Derek J. Clark</name>
<email>derekjohn.clark@gmail.com</email>
</author>
<published>2026-05-10T04:25:35+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=9b718ebe0e9725e4040bda129a01d2dab86c15eb'/>
<id>9b718ebe0e9725e4040bda129a01d2dab86c15eb</id>
<content type='text'>
commit 71f3843e0f81e3c097a088c1121154bb9a44da0a upstream.

In struct tunable_attr_01 the capdata pointer is unused and the size of
the id members is u32 when it should be u8. Fix these prior to adding
additional members.

No functional change intended.

Reviewed-by: Mark Pearson &lt;mpearson-lenovo@squebb.ca&gt;
Cc: stable@vger.kernel.org
Reviewed-by: Rong Zhang &lt;i@rong.moe&gt;
Tested-by: Rong Zhang &lt;i@rong.moe&gt;
Signed-off-by: Derek J. Clark &lt;derekjohn.clark@gmail.com&gt;
Link: https://patch.msgid.link/20260510042546.436874-6-derekjohn.clark@gmail.com
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 71f3843e0f81e3c097a088c1121154bb9a44da0a upstream.

In struct tunable_attr_01 the capdata pointer is unused and the size of
the id members is u32 when it should be u8. Fix these prior to adding
additional members.

No functional change intended.

Reviewed-by: Mark Pearson &lt;mpearson-lenovo@squebb.ca&gt;
Cc: stable@vger.kernel.org
Reviewed-by: Rong Zhang &lt;i@rong.moe&gt;
Tested-by: Rong Zhang &lt;i@rong.moe&gt;
Signed-off-by: Derek J. Clark &lt;derekjohn.clark@gmail.com&gt;
Link: https://patch.msgid.link/20260510042546.436874-6-derekjohn.clark@gmail.com
Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
