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Alexey Khoroshilov 7aeda39ef5 staging: iio: ad7152: Fix deadlock in ad7152_write_raw_samp_freq()

commit 95264c8c6a upstream.

ad7152_write_raw_samp_freq() is called by ad7152_write_raw() with
chip->state_lock held. So, there is unavoidable deadlock when
ad7152_write_raw_samp_freq() locks the mutex itself.

The patch removes unneeded locking.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Fixes: 6572389bcc ("staging: iio: cdc: ad7152: Implement IIO_CHAN_INFO_SAMP_FREQ attribute")
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-06-24 07:06:20 +02:00

accel

iio: adis16203: Fix copyright year

2016-12-03 08:56:29 +00:00

adc

Staging: iio: adc: ad7816: fix symbolic permissions coding style issue

2017-01-28 12:22:07 +00:00

addac

staging:iio:addac:adt7316 Fixes Alignment should match open parenthesis

2017-01-10 19:54:57 +00:00

cdc

staging: iio: ad7152: Fix deadlock in ad7152_write_raw_samp_freq()