iio: gyro: adxrs290: Insert missing mutex initialization call
authorNishant Malpani <nish.malpani25@gmail.com>
Tue, 25 Aug 2020 12:45:52 +0000 (18:15 +0530)
committerJonathan 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

index 38bab4e3eee9abe7c46c825b8ab11ee610905eed..ff989536d2fbc2421e7717123163a90f0e593d2e 100644 (file)
@@ -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);