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![]() On machines with dual accelerometers described in a single ACPI fwnode,
the bmc150_accel_probe() instantiates a second i2c-client for the second
accelerometer.
A pointer to this manually instantiated second i2c-client is stored
inside the iio_dev's private-data through bmc150_set_second_device(),
so that the i2c-client can be unregistered from bmc150_accel_remove().
Before this commit bmc150_set_second_device() took only 1 argument so it
would store the pointer in private-data of the iio_dev belonging to the
manually instantiated i2c-client, leading to the bmc150_accel_remove()
call for the second_dev trying to unregister *itself* while it was
being removed, leading to a deadlock and rmmod hanging.
Change bmc150_set_second_device() to take 2 arguments: 1. The i2c-client
which is instantiating the second i2c-client for the 2nd accelerometer and
2. The second-device pointer itself (which also is an i2c-client).
This will store the second_device pointer in the private data of the
iio_dev belonging to the (ACPI instantiated) i2c-client for the first
accelerometer and will make bmc150_accel_remove() unregister the
second_device i2c-client when called for the first client,
avoiding the deadlock.
Fixes:
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.. | ||
accel | ||
adc | ||
afe | ||
amplifiers | ||
buffer | ||
cdc | ||
chemical | ||
common | ||
dac | ||
dummy | ||
frequency | ||
gyro | ||
health | ||
humidity | ||
imu | ||
light | ||
magnetometer | ||
multiplexer | ||
orientation | ||
position | ||
potentiometer | ||
potentiostat | ||
pressure | ||
proximity | ||
resolver | ||
temperature | ||
test | ||
trigger | ||
iio_core.h | ||
iio_core_trigger.h | ||
industrialio-buffer.c | ||
industrialio-configfs.c | ||
industrialio-core.c | ||
industrialio-event.c | ||
industrialio-sw-device.c | ||
industrialio-sw-trigger.c | ||
industrialio-trigger.c | ||
industrialio-triggered-event.c | ||
inkern.c | ||
Kconfig | ||
Makefile | ||
TODO |