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iio: gyro: adxrs290: Insert missing mutex initialization call
author
Nishant Malpani
<nish.malpani25@gmail.com>
Tue, 25 Aug 2020 12:45:52 +0000
(18:15 +0530)
committer
Jonathan Cameron
<Jonathan.Cameron@huawei.com>
Thu, 3 Sep 2020 18:40:51 +0000
(19:40 +0100)
Insert a missing mutex_init() call during the probe that initializes
the driver's local lock to unlocked state.
Fixes:
2c8920fff145
("iio: gyro: Add driver support for ADXRS290")
Signed-off-by: Nishant Malpani <nish.malpani25@gmail.com>
Link:
https://lore.kernel.org/r/20200825124552.11155-1-nish.malpani25@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
drivers/iio/gyro/adxrs290.c
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diff --git
a/drivers/iio/gyro/adxrs290.c
b/drivers/iio/gyro/adxrs290.c
index
38bab4e
..
ff98953
100644
(file)
--- a/
drivers/iio/gyro/adxrs290.c
+++ b/
drivers/iio/gyro/adxrs290.c
@@
-385,6
+385,8
@@
static int adxrs290_probe(struct spi_device *spi)
indio_dev->num_channels = ARRAY_SIZE(adxrs290_channels);
indio_dev->info = &adxrs290_info;
+ mutex_init(&st->lock);
+
val = spi_w8r8(spi, ADXRS290_READ_REG(ADXRS290_REG_ADI_ID));
if (val != ADXRS290_ADI_ID) {
dev_err(&spi->dev, "Wrong ADI ID 0x%02x\n", val);