设备安全等级管理开发指南开发示例代码if分支return前添加释放内存语句;更新安全中指向设备安全等级管理开发指南文件的链接

Signed-off-by: Nshi_peng_tao <shipengtao@huawei.com>

en/device-dev/subsystems/subsys-security-devicesecuritylevel.md

@@ -94,7 +94,8 @@ All the APIs are native C interfaces for implementing underlying capabilities an
     // Obtain the device security level from the device security level information.
     ret = GetDeviceSecurityLevelValue(info, &level);
     if (ret == SUCCESS) {
-        // The operation is successful.
+        //The level is successfully queried.
+        FreeDeviceSecurityInfo(info);
         return;
     }
     // Release the memory before the processing is complete.
@@ -126,6 +127,7 @@ void CheckDestDeviceSecurityLevel(const DeviceIdentify *device, RequestOption *o
     ret = GetDeviceSecurityLevelValue(info, &level);
     if (ret != SUCCESS) {
         // Failed to obtain the security level. You can develop a retry process as required.
+        FreeDeviceSecurityInfo(info);
         return;
     }
     // After the device security level is successfully obtained, check the lowest security level required for the current operation.
@@ -151,6 +153,7 @@ void DeviceSecurityInfoCallback(const DeviceIdentify *identify, struct DeviceSec
     int32_t ret = GetDeviceSecurityLevelValue(info, &level);
     if (ret != SUCCESS) {
         // Failed to obtain the information. You can develop a retry process as required.
+        FreeDeviceSecurityInfo(info);
         return;
     }
     // After the device security level is successfully obtained, check the lowest security level required for the current operation.

zh-cn/device-dev/subsystems/subsys-security-devicesecuritylevel.md

@@ -94,7 +94,8 @@ OpenHarmony设备的默认安全等级为SL1，设备制造商可以根据设备
     // 从设备安全等级信息中提取设备安全等级字段
     ret = GetDeviceSecurityLevelValue(info, &level);
     if (ret == SUCCESS) {
-        // 查询成功。
+        // 成功查询到相关等级。 
+        FreeDeviceSecurityInfo(info);
         return;
     }
     // 结束处理前，需要释放内存
@@ -126,6 +127,7 @@ void CheckDestDeviceSecurityLevel(const DeviceIdentify *device, RequestOption *o
     ret = GetDeviceSecurityLevelValue(info, &level);
     if (ret != SUCCESS) {
         // 提取信息失败， 此场景建议开发者根据实际情况进行重试
+        FreeDeviceSecurityInfo(info);
         return;
     }
     // 成功获取到设备安全等级，确认当前操作允许的最低安全等级
@@ -151,6 +153,7 @@ void DeviceSecurityInfoCallback(const DeviceIdentify *identify, struct DeviceSec
     int32_t ret = GetDeviceSecurityLevelValue(info, &level);
     if (ret != SUCCESS) {
         // 获取信息失败。此场景建议开发者根据实际情况进行重试
+        FreeDeviceSecurityInfo(info);
         return;
     }
     // 成功获取到设备安全等级，确认当前操作允许的最低安全等级

zh-cn/device-dev/subsystems/subsys-security.md

@@ -10,4 +10,4 @@
 
 - **[IPC通信鉴权开发指导](subsys-security-communicationverify.md)**
 
-- **[设备安全等级管理开发指南](subsys-security-dslm.md)**
\ No newline at end of file
+- **[设备安全等级管理开发指南](subsys-security-devicesecuritylevel.md)**
\ No newline at end of file