linux

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Hans de Goede 9846b9e4bb platform/x86: wmi: Fix driver->notify() vs ->probe() race

[ Upstream commit 9918878676 ]

The driver core sets struct device->driver before calling out
to the bus' probe() method, this leaves a window where an ACPI
notify may happen on the WMI object before the driver's
probe() method has completed running, causing e.g. the
driver's notify() callback to get called with drvdata
not yet being set leading to a NULL pointer deref.

At a check for this to the WMI core, ensuring that the notify()
callback is not called before the driver is ready.

Fixes: 1686f54445 ("platform/x86: wmi: Incorporate acpi_install_notify_handler")
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20211128190031.405620-2-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

2022-07-12 16:34:53 +02:00

chrome

platform/chrome: Re-introduce cros_ec_cmd_xfer and use it for ioctls

2022-06-09 10:23:06 +02:00

goldfish

platform/goldfish: Convert pipe tasklet to threaded irq

2021-01-27 14:57:06 +01:00

mellanox

platform/mellanox: mlxbf-pmc: Fix an IS_ERR() vs NULL bug in mlxbf_pmc_map_counters

2022-01-05 12:42:33 +01:00

mips

MIPS: Loongson-3: fix compile mips cpu_hwmon as module build error.