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Lenovo ThinkPad T490 has a Synaptics Touchpad that supports SMBus/RMI4
mode, but is not listed in smbus_pnp_ids table.
Add LEN205b to smbus_pnp_ids[] passlist.
Reported-by: John Rosencutter <rosencutter@gmail.com>
Closes: https://lore.kernel.org/all/CAOGuaRh025eKcBf9P8UrvtXNp68vQ0HVF2EbNMp-kpdaC1HNpA@mail.gmail.com/
Signed-off-by: Lovekesh Solanki <lovekeshsolanki00@gmail.com>
Link: https://patch.msgid.link/20260920200730.1836756-1-lovekeshsolanki00@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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hp_sdc_kicker() rearms hp_sdc.kicker with mod_timer() after scheduling the
tasklet. The module exit path uses timer_delete_sync(). That waits for a
callback already running but can still leave the timer rearmed.
A callback can therefore leave the timer pending while hp_sdc_exit() tears
down the driver, allowing timer activity to access dismantled driver state.
Use timer_shutdown_sync() for final teardown. It waits for a running
callback and prevents rearming after module exit begins.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Assisted-by: Codex:GPT-5
Signed-off-by: Runyu Xiao <runyu.xiao@seu.edu.cn>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patch.msgid.link/20260902154004.3595416-1-runyu.xiao@seu.edu.cn
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The controller doesn't currently work via USB-cable.
Signed-off-by: Erich Sartison <byt.es@mailbox.org>
Link: https://patch.msgid.link/20260903103137.630170-1-byt.es@mailbox.org
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The "ti,poll-period" property is documented as a normal uint32 cell.
The driver used a u64 helper, which makes the helper type disagree with
the schema even though the stored value is still small.
Read "ti,poll-period" with the u32 helper matching the documented DT
cell size.
Assisted-by: Codex:gpt-5-5
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20260831194352.1185860-1-robh@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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