w1: ds2438: fixed if brackets coding style issue

Since there is only one statement inside the if clause, no brackets are
required.
Signed-off-by: Luiz Sampaio <sampaio.ime@gmail.com>
Link: https://lore.kernel.org/r/20210519223046.13798-3-sampaio.ime@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/w1/slaves/w1_ds2438.c

@@ -287,9 +287,9 @@ static ssize_t iad_read(struct file *filp, struct kobject *kobj,
 	if (!buf)
 		return -EINVAL;
 
-	if (w1_ds2438_get_current(sl, &voltage) == 0) {
+	if (w1_ds2438_get_current(sl, &voltage) == 0)
 		ret = snprintf(buf, count, "%i\n", voltage);
-	} else
+	else
 		ret = -EIO;
 
 	return ret;
@@ -338,9 +338,9 @@ static ssize_t temperature_read(struct file *filp, struct kobject *kobj,
 	if (!buf)
 		return -EINVAL;
 
-	if (w1_ds2438_get_temperature(sl, &temp) == 0) {
+	if (w1_ds2438_get_temperature(sl, &temp) == 0)
 		ret = snprintf(buf, count, "%i\n", temp);
-	} else
+	else
 		ret = -EIO;
 
 	return ret;
@@ -359,9 +359,9 @@ static ssize_t vad_read(struct file *filp, struct kobject *kobj,
 	if (!buf)
 		return -EINVAL;
 
-	if (w1_ds2438_get_voltage(sl, DS2438_ADC_INPUT_VAD, &voltage) == 0) {
+	if (w1_ds2438_get_voltage(sl, DS2438_ADC_INPUT_VAD, &voltage) == 0)
 		ret = snprintf(buf, count, "%u\n", voltage);
-	} else
+	else
 		ret = -EIO;
 
 	return ret;
@@ -380,9 +380,9 @@ static ssize_t vdd_read(struct file *filp, struct kobject *kobj,
 	if (!buf)
 		return -EINVAL;
 
-	if (w1_ds2438_get_voltage(sl, DS2438_ADC_INPUT_VDD, &voltage) == 0) {
+	if (w1_ds2438_get_voltage(sl, DS2438_ADC_INPUT_VDD, &voltage) == 0)
 		ret = snprintf(buf, count, "%u\n", voltage);
-	} else
+	else
 		ret = -EIO;
 
 	return ret;