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iio: accel: adxl372: convert to guard(mutex)

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Replace manual mutex_lock/mutex_unlock pair with guard(mutex) in
adxl372_write_threshold_value(). This ensures the mutex is released
on all return paths and allows returning directly without a goto label.

Signed-off-by: Rajveer Chaudhari <rajveer.chaudhari.linux@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Rajveer Chaudhari 2026-03-07 17:19:12 +05:30 committed by Jonathan Cameron
parent c4e7372862
commit 594ca8ced1
1 changed files with 6 additions and 9 deletions
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15
drivers/iio/accel/adxl372.c
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@ -7,6 +7,7 @@
#include <linux/bitfield.h>
#include <linux/bitops.h>
#include <linux/cleanup.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/module.h>
@ -336,18 +337,14 @@ static ssize_t adxl372_write_threshold_value(struct iio_dev *indio_dev, unsigned
struct adxl372_state *st = iio_priv(indio_dev);
int ret;
mutex_lock(&st->threshold_m);
guard(mutex)(&st->threshold_m);
ret = regmap_write(st->regmap, addr, ADXL372_THRESH_VAL_H_SEL(threshold));
if (ret < 0)
goto unlock;
return ret;
ret = regmap_update_bits(st->regmap, addr + 1, GENMASK(7, 5),
ADXL372_THRESH_VAL_L_SEL(threshold) << 5);
unlock:
mutex_unlock(&st->threshold_m);
return ret;
return regmap_update_bits(st->regmap, addr + 1, GENMASK(7, 5),
ADXL372_THRESH_VAL_L_SEL(threshold) << 5);
}
static int adxl372_read_axis(struct adxl372_state *st, u8 addr)