diff --git a/code/application/source/cardv/SrcCode/System/SF_SysStrgMng.c b/code/application/source/cardv/SrcCode/System/SF_SysStrgMng.c
index 1d6db7df6..eaf9abd7b 100755
--- a/code/application/source/cardv/SrcCode/System/SF_SysStrgMng.c
+++ b/code/application/source/cardv/SrcCode/System/SF_SysStrgMng.c
@@ -51,11 +51,20 @@ SF_ST_MMC_DEV *pMMCDev = NULL;
 
 void SF_SetMMCDev(SF_ST_MMC_DEV *pDev)
 {
+	if(pDev == NULL)
+	{
+		return;
+	}
+	
 	pMMCDev = pDev;
 }
 
 SF_ST_MMC_DEV *SF_GetMMCDev(void)
 {
+	if(pMMCDev == NULL)
+	{
+		return NULL;
+	}
 	return pMMCDev;
 }
 
@@ -87,13 +96,20 @@ void SF_StrgUnInit(void)
             sf_mmc_dev[i] = NULL;
         }
     }
-	free(pMMCDev);
-	pMMCDev = NULL;
+	
+	if(pMMCDev != NULL)
+	{
+		free(pMMCDev);
+		pMMCDev = NULL;
+	}
 }
 
 int SF_GetMMCDevHandle(MMC_DEV_TYPE dev_type)
 {
-	return sf_mmc_dev[dev_type]->dcf_handle;
+	if(sf_mmc_dev != NULL) {
+		return sf_mmc_dev[dev_type]->dcf_handle;
+	}
+	return 0;
 }
 
 void SF_StrgSetDcfHandle(UINT32 strg_id, UINT32 handle)
@@ -105,6 +121,7 @@ static UINT32 SF_StrgSpaceCheckFull(MMC_DEV_TYPE mmc_dev)
 {
 	UINT64 diskFree = 0;
     UINT32 ret = 0;
+	UIMenuStoreInfo *puiPara = sf_ui_para_get();
     #if HUNTING_CAMERA_MCU == ENABLE
     if(sf_get_power_off_flag() || sf_is_usb_flag())
 	{
@@ -131,6 +148,15 @@ static UINT32 SF_StrgSpaceCheckFull(MMC_DEV_TYPE mmc_dev)
     {
         ret = 0;
     }
+	
+	if(sf_mmc_dev != NULL) {
+		sf_mmc_dev[mmc_dev]->space_state = ret == 0 ? MMC_DEV_SPACE_STATE_ENOUGH : MMC_DEV_SPACE_STATE_NO_ENOUGH; 
+	}
+	
+	for(int i = 0; i < MMC_DEV_MAX_NUM; i++)
+	{
+		sf_mmc_dev[i]->loop_state = puiPara->SdLoopSwitch == 1 ? MMC_DEV_LOOP_STATE_ON : MMC_DEV_LOOP_STATE_OFF;
+	}
     //MLOGD("[%s:%d]sd card diskFree=%lluM\n", __FUNCTION__, __LINE__, diskFree);
     return ret;
 }