[PATCH v2 2/2] iio: adc: ina2xx: Avoid double reference counting from get_task_struct/put_task_struct()

From: Cai Huoqing
Date: Thu Oct 21 2021 - 08:43:16 EST


kthread_run() and kthread_stop() already do reference
counting of the task, so remove get_task_struct/put_task_struct()
to avoid double reference counting.

Signed-off-by: Cai Huoqing <caihuoqing@xxxxxxxxx>
---
drivers/iio/adc/ina2xx-adc.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/drivers/iio/adc/ina2xx-adc.c b/drivers/iio/adc/ina2xx-adc.c
index 360d7a00f60d..352f27657238 100644
--- a/drivers/iio/adc/ina2xx-adc.c
+++ b/drivers/iio/adc/ina2xx-adc.c
@@ -849,7 +849,6 @@ static int ina2xx_buffer_enable(struct iio_dev *indio_dev)
if (IS_ERR(task))
return PTR_ERR(task);

- get_task_struct(task);
chip->task = task;

return 0;
@@ -861,7 +860,6 @@ 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;
}

--
2.25.1