misc: replace strict_strtoul() with kstrtoul()

The usage of strict_strtoul() is not preferred, because
strict_strtoul() is obsolete. Thus, kstrtoul() should be
used.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/bh1770glc.c b/drivers/misc/bh1770glc.c
index f4975f7..99a0468 100644
--- a/drivers/misc/bh1770glc.c
+++ b/drivers/misc/bh1770glc.c
@@ -651,8 +651,9 @@
 	unsigned long value;
 	ssize_t ret;
 
-	if (strict_strtoul(buf, 0, &value))
-		return -EINVAL;
+	ret = kstrtoul(buf, 0, &value);
+	if (ret)
+		return ret;
 
 	mutex_lock(&chip->mutex);
 	if (value) {
@@ -726,9 +727,11 @@
 {
 	struct bh1770_chip *chip =  dev_get_drvdata(dev);
 	unsigned long value;
+	int ret;
 
-	if (strict_strtoul(buf, 0, &value))
-		return -EINVAL;
+	ret = kstrtoul(buf, 0, &value);
+	if (ret)
+		return ret;
 
 	mutex_lock(&chip->mutex);
 	/* Assume no proximity. Sensor will tell real state soon */
@@ -824,9 +827,11 @@
 {
 	struct bh1770_chip *chip =  dev_get_drvdata(dev);
 	unsigned long value;
+	int ret;
 
-	if (strict_strtoul(buf, 0, &value))
-		return -EINVAL;
+	ret = kstrtoul(buf, 0, &value);
+	if (ret)
+		return ret;
 
 	mutex_lock(&chip->mutex);
 	chip->prox_rate_threshold = bh1770_prox_rate_validate(value);
@@ -840,9 +845,11 @@
 {
 	struct bh1770_chip *chip =  dev_get_drvdata(dev);
 	unsigned long value;
+	int ret;
 
-	if (strict_strtoul(buf, 0, &value))
-		return -EINVAL;
+	ret = kstrtoul(buf, 0, &value);
+	if (ret)
+		return ret;
 
 	mutex_lock(&chip->mutex);
 	chip->prox_rate = bh1770_prox_rate_validate(value);
@@ -865,8 +872,10 @@
 	unsigned long value;
 	int ret;
 
-	if (strict_strtoul(buf, 0, &value))
-		return -EINVAL;
+	ret = kstrtoul(buf, 0, &value);
+	if (ret)
+		return ret;
+
 	if (value > BH1770_PROX_RANGE)
 		return -EINVAL;
 
@@ -893,9 +902,11 @@
 {
 	struct bh1770_chip *chip = dev_get_drvdata(dev);
 	unsigned long value;
+	int ret;
 
-	if (strict_strtoul(buf, 0, &value))
-		return -EINVAL;
+	ret = kstrtoul(buf, 0, &value);
+	if (ret)
+		return ret;
 
 	if (value > BH1770_PROX_MAX_PERSISTENCE)
 		return -EINVAL;
@@ -918,9 +929,11 @@
 {
 	struct bh1770_chip *chip = dev_get_drvdata(dev);
 	unsigned long value;
+	int ret;
 
-	if (strict_strtoul(buf, 0, &value))
-		return -EINVAL;
+	ret = kstrtoul(buf, 0, &value);
+	if (ret)
+		return ret;
 
 	if (value > BH1770_PROX_RANGE)
 		return -EINVAL;
@@ -963,9 +976,11 @@
 	unsigned long value;
 	u32 old_calib;
 	u32 new_corr;
+	int ret;
 
-	if (strict_strtoul(buf, 0, &value))
-		return -EINVAL;
+	ret = kstrtoul(buf, 0, &value);
+	if (ret)
+		return ret;
 
 	mutex_lock(&chip->mutex);
 	old_calib = chip->lux_calib;
@@ -1012,8 +1027,9 @@
 	unsigned long rate_hz;
 	int ret, i;
 
-	if (strict_strtoul(buf, 0, &rate_hz))
-		return -EINVAL;
+	ret = kstrtoul(buf, 0, &rate_hz);
+	if (ret)
+		return ret;
 
 	for (i = 0; i < ARRAY_SIZE(lux_rates_hz) - 1; i++)
 		if (rate_hz >= lux_rates_hz[i])
@@ -1047,11 +1063,12 @@
 static ssize_t bh1770_set_lux_thresh(struct bh1770_chip *chip, u16 *target,
 				const char *buf)
 {
-	int ret = 0;
 	unsigned long thresh;
+	int ret;
 
-	if (strict_strtoul(buf, 0, &thresh))
-		return -EINVAL;
+	ret = kstrtoul(buf, 0, &thresh);
+	if (ret)
+		return ret;
 
 	if (thresh > BH1770_LUX_RANGE)
 		return -EINVAL;