diff options
Diffstat (limited to 'drivers/iio/adc/ina2xx-adc.c')
| -rw-r--r-- | drivers/iio/adc/ina2xx-adc.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/iio/adc/ina2xx-adc.c b/drivers/iio/adc/ina2xx-adc.c index 0635a79864bf..d1239624187d 100644 --- a/drivers/iio/adc/ina2xx-adc.c +++ b/drivers/iio/adc/ina2xx-adc.c @@ -30,6 +30,7 @@ #include <linux/module.h> #include <linux/of_device.h> #include <linux/regmap.h> +#include <linux/sched/task.h> #include <linux/util_macros.h> #include <linux/platform_data/ina2xx.h> @@ -826,6 +827,7 @@ static int ina2xx_buffer_enable(struct iio_dev *indio_dev) { struct ina2xx_chip_info *chip = iio_priv(indio_dev); unsigned int sampling_us = SAMPLING_PERIOD(chip); + struct task_struct *task; dev_dbg(&indio_dev->dev, "Enabling buffer w/ scan_mask %02x, freq = %d, avg =%u\n", (unsigned int)(*indio_dev->active_scan_mask), @@ -835,11 +837,17 @@ static int ina2xx_buffer_enable(struct iio_dev *indio_dev) dev_dbg(&indio_dev->dev, "Async readout mode: %d\n", chip->allow_async_readout); - chip->task = kthread_run(ina2xx_capture_thread, (void *)indio_dev, - "%s:%d-%uus", indio_dev->name, indio_dev->id, - sampling_us); + task = kthread_create(ina2xx_capture_thread, (void *)indio_dev, + "%s:%d-%uus", indio_dev->name, indio_dev->id, + sampling_us); + if (IS_ERR(task)) + return PTR_ERR(task); + + get_task_struct(task); + wake_up_process(task); + chip->task = task; - return PTR_ERR_OR_ZERO(chip->task); + return 0; } static int ina2xx_buffer_disable(struct iio_dev *indio_dev) @@ -848,6 +856,7 @@ static int ina2xx_buffer_disable(struct iio_dev *indio_dev) if (chip->task) { kthread_stop(chip->task); + put_task_struct(chip->task); chip->task = NULL; } |