iio: gyro: mpu3050-core: fix pm_runtime error handling

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commit acc3949aab upstream.

The return value of pm_runtime_get_sync() is not checked, allowing
the driver to access hardware that may fail to resume. The device
usage count is also unconditionally incremented. Use
pm_runtime_resume_and_get() which propagates errors and avoids
incrementing the usage count on failure.

In preenable, add pm_runtime_put_autosuspend() on set_8khz_samplerate()
failure since postdisable does not run when preenable fails.

Fixes: 3904b28efb ("iio: gyro: Add driver for the MPU-3050 gyroscope")
Reviewed-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Antoniu Miclaus 2026-02-16 11:57:56 +02:00 • committed by Greg Kroah-Hartman

parent fe1ecc367d

commit 8544c488e5

1 changed files with 13 additions and 5 deletions

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drivers/iio/gyro/mpu3050-core.c

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