[PATCH] iio: st_sensors: Convert to use sysfs_emit_at() API

From: ye.xingchen
Date: Wed Dec 07 2022 - 02:54:14 EST


From: ye xingchen <ye.xingchen@xxxxxxxxxx>

Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.

Signed-off-by: ye xingchen <ye.xingchen@xxxxxxxxxx>
---
drivers/iio/common/st_sensors/st_sensors_core.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index c77d7bdcc121..44e374f84197 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -628,8 +628,7 @@ ssize_t st_sensors_sysfs_sampling_frequency_avail(struct device *dev,
if (sdata->sensor_settings->odr.odr_avl[i].hz == 0)
break;

- len += scnprintf(buf + len, PAGE_SIZE - len, "%d ",
- sdata->sensor_settings->odr.odr_avl[i].hz);
+ len += sysfs_emit_at(buf, len, "%d ", sdata->sensor_settings->odr.odr_avl[i].hz);
}
buf[len - 1] = '\n';

@@ -651,7 +650,7 @@ ssize_t st_sensors_sysfs_scale_avail(struct device *dev,
q = sdata->sensor_settings->fs.fs_avl[i].gain / 1000000;
r = sdata->sensor_settings->fs.fs_avl[i].gain % 1000000;

- len += scnprintf(buf + len, PAGE_SIZE - len, "%u.%06u ", q, r);
+ len += sysfs_emit_at(buf, len, "%u.%06u ", q, r);
}
buf[len - 1] = '\n';

--
2.25.1