[PATCH v6 09/11] iio: adc: hx711: localize loop iterators in hx711_read

[Piyush Patle <piyushpatle228@gmail.com>]

Tighten the scope of the loop variables in hx711_read() now that
trailing-pulse selection is already handled by the callers.

Also replace the 24-bit loop bound with a named constant while touching
the same code.

Suggested-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Piyush Patle <piyushpatle228@gmail.com>
---
 drivers/iio/adc/hx711.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/adc/hx711.c b/drivers/iio/adc/hx711.c
index b2de8db285b2..98fb617ea32b 100644
--- a/drivers/iio/adc/hx711.c
+++ b/drivers/iio/adc/hx711.c
@@ -24,6 +24,7 @@
 #include <linux/regulator/consumer.h>
 
 /* gain to pulse and scale conversion */
+#define HX711_DATA_BITS		24
 #define HX711_GAIN_MAX		3
 #define HX711_RESET_GAIN	128
 
@@ -157,9 +158,9 @@ static int hx711_cycle(struct hx711_data *hx711_data)
 
 static int hx711_read(struct hx711_data *hx711_data, int trailing_pulses)
 {
-	int i, ret;
 	int value = 0;
 	int val;
+	int ret;
 
 	val = gpiod_get_value(hx711_data->gpiod_dout);
 
@@ -167,7 +168,7 @@ static int hx711_read(struct hx711_data *hx711_data, int trailing_pulses)
 	if (val)
 		return -EIO;
 
-	for (i = 0; i < 24; i++) {
+	for (int i = 0; i < HX711_DATA_BITS; i++) {
 		value <<= 1;
 		ret = hx711_cycle(hx711_data);
 		if (ret)
@@ -176,7 +177,7 @@ static int hx711_read(struct hx711_data *hx711_data, int trailing_pulses)
 
 	value ^= 0x800000;
 
-	for (i = 0; i < trailing_pulses; i++)
+	for (int i = 0; i < trailing_pulses; i++)
 		hx711_cycle(hx711_data);
 
 	return value;
-- 
2.43.0