[PATCH] staging: rtl8723bs: remove copy function

["Bera Yüzlü" <b9788213@gmail.com>]

GetU1ByteIntegerFromStringInDecimal() is a copy of kstrtou8().
Remove its usages to kstrtou8() and check the return value.

Signed-off-by: Bera Yüzlü <b9788213@gmail.com>
---
 drivers/staging/rtl8723bs/hal/hal_com.c       | 19 -------------------
 .../staging/rtl8723bs/hal/hal_com_phycfg.c    | 14 ++++++++++----
 drivers/staging/rtl8723bs/include/hal_com.h   |  2 --
 3 files changed, 10 insertions(+), 25 deletions(-)

diff --git a/drivers/staging/rtl8723bs/hal/hal_com.c b/drivers/staging/rtl8723bs/hal/hal_com.c
index 50370b14ce7c..4f4a430c9f87 100644
--- a/drivers/staging/rtl8723bs/hal/hal_com.c
+++ b/drivers/staging/rtl8723bs/hal/hal_com.c
@@ -751,25 +751,6 @@ void SetHalODMVar(
 	}
 }
 
-
-bool GetU1ByteIntegerFromStringInDecimal(char *Str, u8 *pInt)
-{
-	u16 i = 0;
-	*pInt = 0;
-
-	while (Str[i] != '\0') {
-		if (Str[i] >= '0' && Str[i] <= '9') {
-			*pInt *= 10;
-			*pInt += (Str[i] - '0');
-		} else
-			return false;
-
-		++i;
-	}
-
-	return true;
-}
-
 void rtw_hal_check_rxfifo_full(struct adapter *adapter)
 {
 	/* switch counter to RX fifo */
diff --git a/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c b/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c
index bdd595a99b98..447b72954804 100644
--- a/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c
+++ b/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c
@@ -816,11 +816,17 @@ void PHY_SetTxPowerLimit(
 )
 {
 	struct hal_com_data	*pHalData = GET_HAL_DATA(Adapter);
-	u8 regulation = 0, bandwidth = 0, rateSection = 0, channel;
-	s8 powerLimit = 0, prevPowerLimit, channelIndex;
+	u8 regulation = 0, bandwidth = 0, rateSection = 0, channel, powerLimit;
+	s8 prevPowerLimit, channelIndex;
+	int ret;
 
-	GetU1ByteIntegerFromStringInDecimal((s8 *)Channel, &channel);
-	GetU1ByteIntegerFromStringInDecimal((s8 *)PowerLimit, &powerLimit);
+	ret = kstrtou8((const char *)Channel, 10, &channel);
+	if (ret)
+		return;
+
+	ret = kstrtou8((const char *)PowerLimit, 10, &powerLimit);
+	if (ret)
+		return;
 
 	powerLimit = powerLimit > MAX_POWER_INDEX ? MAX_POWER_INDEX : powerLimit;
 
diff --git a/drivers/staging/rtl8723bs/include/hal_com.h b/drivers/staging/rtl8723bs/include/hal_com.h
index 483f0390addc..7c67fee148fa 100644
--- a/drivers/staging/rtl8723bs/include/hal_com.h
+++ b/drivers/staging/rtl8723bs/include/hal_com.h
@@ -141,8 +141,6 @@ void rtw_hal_check_rxfifo_full(struct adapter *adapter);
 u8 GetHalDefVar(struct adapter *adapter, enum hal_def_variable variable,
 		void *value);
 
-bool GetU1ByteIntegerFromStringInDecimal(char *str, u8 *in);
-
 #define		HWSET_MAX_SIZE			512
 
 void rtw_bb_rf_gain_offset(struct adapter *padapter);
-- 
2.53.0