mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-28 15:20:41 +00:00
Code Issues Releases Wiki Activity

iio: adis16475: fix deadlock on frequency set

Browse source 
With commit 39c024b51b
("iio: adis16475: improve sync scale mode handling"), two deadlocks were
introduced:
 1) The call to 'adis_write_reg_16()' was not changed to it's unlocked
    version.
 2) The lock was not being released on the success path of the function.

This change fixes both these issues.

Fixes: 39c024b51b ("iio: adis16475: improve sync scale mode handling")
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Link: https://lore.kernel.org/r/20210920090047.74903-1-nuno.sa@analog.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Nuno Sá 2021-09-20 11:00:47 +02:00 committed by Jonathan Cameron
parent 8167c9a375
commit 9da1b86865
1 changed files with 2 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/iio/imu/adis16475.c
View file

@ -353,10 +353,11 @@ static int adis16475_set_freq(struct adis16475 *st, const u32 freq)
if (dec > st->info->max_dec)
dec = st->info->max_dec;
ret = adis_write_reg_16(&st->adis, ADIS16475_REG_DEC_RATE, dec);
ret = __adis_write_reg_16(&st->adis, ADIS16475_REG_DEC_RATE, dec);
if (ret)
goto error;
adis_dev_unlock(&st->adis);
/*
* If decimation is used, then gyro and accel data will have meaningful
* bits on the LSB registers. This info is used on the trigger handler.