diff --git a/drivers/mtd/hisilicon/sfc/hrd_sfc_driver.c b/drivers/mtd/hisilicon/sfc/hrd_sfc_driver.c
index 732cb5f1b11e20e53e8c814b8f1e33f4c9213717..36796270d5bfba6c4a048e0cac9ee1d6ec168a96 100644
--- a/drivers/mtd/hisilicon/sfc/hrd_sfc_driver.c
+++ b/drivers/mtd/hisilicon/sfc/hrd_sfc_driver.c
@@ -27,9 +27,8 @@
 #include <linux/acpi.h>
 #include "hrdCommon.h"
 #include "hrd_sflash_driver.h"
-#include "hrd_sflash_hal.h"
 
-#define	SFC_DRIVER_VERSION	"1.7.8.0"
+#define	SFC_DRIVER_VERSION	"1.7.9.0"
 
 static const char *sflashMtdList[] = { "sflash", NULL };
 
@@ -147,6 +146,10 @@ static unsigned int flash_map_init(struct platform_device *pdev)
 	sfc_regres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	flash_iores = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 
+	if (!sfc_regres || !flash_iores) {
+		return -EFAULT;
+	}
+
 	if (sfc_regres->end <= sfc_regres->start) {
 		pr_err("ERROR: sfc register error\n");
 		return -EFAULT;
@@ -193,7 +196,6 @@ static void __exit flash_map_exit(struct platform_device *pdev)
 	for (i = 0; i < host->mapsNum; i++) {
 		if (host->maps[i].mtdInfo) {
 			(void)mtd_device_unregister(host->maps[i].mtdInfo);
-			map_destroy(host->maps[i].mtdInfo);
 		}
 
 		if (host->maps[i].mapInfo.virt) {
@@ -201,7 +203,7 @@ static void __exit flash_map_exit(struct platform_device *pdev)
 			host->maps[i].mapInfo.virt = 0;
 		}
 
-		   if (host->maps[i].mtdInfo) {
+		if (host->maps[i].mtdInfo) {
 			sflash_destroy(host->maps[i].mtdInfo);
 		}
 	}
diff --git a/drivers/mtd/hisilicon/sfc/hrd_sflash_driver.c b/drivers/mtd/hisilicon/sfc/hrd_sflash_driver.c
index 636d2c48e6235e983ddf9c09d8b12269874de217..659dbe1eccc3b4dd8160d34a1e8f6b7748b297e9 100644
--- a/drivers/mtd/hisilicon/sfc/hrd_sflash_driver.c
+++ b/drivers/mtd/hisilicon/sfc/hrd_sflash_driver.c
@@ -164,7 +164,6 @@ struct mtd_info *sflash_probe(struct map_info *map, struct resource *sfc_regres)
 		((sflash->sectorNumber * sflash->sectorSize) / 1024),
 		sflash->sectorNumber, (sflash->sectorSize / 1024));
 
-	__module_get(THIS_MODULE);
 	return mtd;
 
  exit0:
diff --git a/drivers/mtd/hisilicon/sfc/hrd_sflash_hal.c b/drivers/mtd/hisilicon/sfc/hrd_sflash_hal.c
index 1a2bb3a783dec7ee35d95f3f63d0dcf7727e641c..c30600512db25aaac3d30d88b7524f77d29abc8d 100644
--- a/drivers/mtd/hisilicon/sfc/hrd_sflash_hal.c
+++ b/drivers/mtd/hisilicon/sfc/hrd_sflash_hal.c
@@ -999,7 +999,7 @@ static s32 SFC_RegWordAlignRead(struct SFC_SFLASH_INFO *sflash,
 	}
 
 	for (i = 0; i < ulDataCnt; i++) {
-		pulData[i] = SFC_RegisterRead(sflash->sfc_reg_base + DATABUFFER1 + 4*i);
+		pulData[i] = SFC_RegisterRead(sflash->sfc_reg_base + DATABUFFER1 + (u32)(4*i));
 	}
 
 	return ulRet;
@@ -1069,7 +1069,7 @@ static s32 SFC_RegWordAlignWrite(struct SFC_SFLASH_INFO *sflash,
 	ulDataCnt = ulWriteLen>>2;
 	for (i = 0; i < ulDataCnt; i++) {
 
-		SFC_RegisterWrite(sflash->sfc_reg_base + DATABUFFER1+4*i, ulData[i]);
+		SFC_RegisterWrite(sflash->sfc_reg_base + DATABUFFER1 + (u32)(4*i), ulData[i]);
 	}
 	SFC_RegisterWrite(sflash->sfc_reg_base + CMD_ADDR, ulOffsetAddr);
 
diff --git a/drivers/mtd/hisilicon/sfc/lbc.h b/drivers/mtd/hisilicon/sfc/lbc.h
deleted file mode 100644
index 4bf1592661e2d147486a98325a578db1862d3302..0000000000000000000000000000000000000000
--- a/drivers/mtd/hisilicon/sfc/lbc.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Copyright (C) 2019 Hisilicon Limited, All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http:
- */
-
-#ifndef __HI_LBC_H__
-#define __HI_LBC_H__
-
-/**
- * lbc_read8 - read a register byte data through lbc
- * @index: cs index
- * @offset: register offset
- * @value: register byte data
- * return 0 - success, negative - fail
- */
-
-int lbc_read8(unsigned int index, unsigned int offset, unsigned char *value);
-
-/**
- * lbc_write8 - write a register byte data through lbc
- * @index: cs index
- * @offset: register offset
- * @data: register byte data
- * return 0 - success, negative - fail
- */
-int lbc_write8(unsigned int index, unsigned int offset, unsigned char data);
-
-/**
- * lbc_read8_nolock - read a register byte data through lbc(no lock)
- * @index: cs index
- * @offset: register offset
- * @value: register byte data
- * return 0 - success, negative - fail
- */
-int lbc_read8_nolock(unsigned int index, unsigned int offset, unsigned char *value);
-
-/**
- * lbc_write8_nolock - write a register byte data through lbc(no lock)
- * @index: cs index
- * @offset: register offset
- * @value: register byte data
- * return 0 - success, negative - fail
- */
-int lbc_write8_nolock(unsigned int index, unsigned int offset, unsigned char data);
-
-#endif