[PATCH v3 3/3] iio: light: ltr501: use `sysfs_emit_at()` for showing scales

[rafasales em usp.br]

From: "Rafael B. Sales" <rafasales em usp.br>

Replace `scnprintf()` with `sysfs_emit_at()`, which is
PAGE_SIZE-aware and preferred for use in sysfs.

Signed-off-by: Rafael B. Sales <rafasales em usp.br>
Co-developed-by: Gustavo C. Arakaki <gustavo.arakaki em usp.br>
Signed-off-by: Gustavo C. Arakaki <gustavo.arakaki em usp.br>
---
 drivers/iio/light/ltr501.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c
index 81fb35cbd56a..3866aa2c8abf 100644
--- a/drivers/iio/light/ltr501.c
+++ b/drivers/iio/light/ltr501.c
@@ -9,7 +9,6 @@
  * TODO: IR LED characteristics
  */
 
-#include <asm/page.h>
 #include <asm/byteorder.h>
 
 #include <linux/array_size.h>
@@ -1114,7 +1113,7 @@ static ssize_t ltr501_show_proximity_scale_avail(struct device *dev,
 	for (i = 0; i < info->ps_gain_tbl_size; i++) {
 		if (info->ps_gain[i].scale == LTR501_RESERVED_GAIN)
 			continue;
-		len += scnprintf(buf + len, PAGE_SIZE - len, "%d.%06d ",
+		len += sysfs_emit_at(buf, len, "%d.%06d ",
 				 info->ps_gain[i].scale,
 				 info->ps_gain[i].uscale);
 	}
@@ -1136,7 +1135,7 @@ static ssize_t ltr501_show_intensity_scale_avail(struct device *dev,
 	for (i = 0; i < info->als_gain_tbl_size; i++) {
 		if (info->als_gain[i].scale == LTR501_RESERVED_GAIN)
 			continue;
-		len += scnprintf(buf + len, PAGE_SIZE - len, "%d.%06d ",
+		len += sysfs_emit_at(buf, len, "%d.%06d ",
 				 info->als_gain[i].scale,
 				 info->als_gain[i].uscale);
 	}
-- 
2.53.0