diff --git a/platform/mipi_dsi/mipi_tx_dev.c b/platform/mipi_dsi/mipi_tx_dev.c
index d5ab2a6cd195b795a3d44812be68fcbd60ceef64..0d877007bcf7a755e85bda4fca7096e78b09bd30 100644
--- a/platform/mipi_dsi/mipi_tx_dev.c
+++ b/platform/mipi_dsi/mipi_tx_dev.c
@@ -336,13 +336,11 @@ static int32_t MipiDsiDevSetCfg(struct MipiDsiCntlr *cntlr, struct MipiCfg *arg)
             HDF_LOGE("%s: [CopyFromUser] failed.", __func__);
             return HDF_ERR_IO;
         }
-    } else { /* kernel space */
-        if (memcpy_s(temp, size, arg, size) != EOK) {
-            OsalMemFree(temp);
-            temp = NULL;
-            HDF_LOGE("%s: [memcpy_s] failed.", __func__);
-            return HDF_ERR_IO;
-        }
+    } else {
+        OsalMemFree(temp);
+        temp = NULL;
+        HDF_LOGE("%s: illegal user space address.", __func__);
+        return HDF_FAILURE;
     }
 
     ret = MipiDsiCntlrSetCfg(cntlr, temp);
@@ -387,13 +385,11 @@ int32_t MipiDsiDevSetCmd(struct MipiDsiCntlr *cntlr, struct DsiCmdDesc *arg)
             HDF_LOGE("%s: [CopyFromUser] failed.", __func__);
             return HDF_ERR_IO;
         }
-    } else { /* kernel space */
-        if (memcpy_s(temp, size, arg, size) != EOK) {
-            OsalMemFree(temp);
-            temp = NULL;
-            HDF_LOGE("%s: [memcpy_s] failed.", __func__);
-            return HDF_ERR_IO;
-        }
+    } else {
+        OsalMemFree(temp);
+        temp = NULL;
+        HDF_LOGE("%s: illegal user space address.", __func__);
+        return HDF_FAILURE;
     }
 
     ret = MipiDsiCntlrTx(cntlr, temp);
@@ -414,11 +410,9 @@ int32_t MipiDsiDevCmdCopyFromUser(GetDsiCmdDescTag *arg, GetDsiCmdDescTag *temp,
             HDF_LOGE("%s: [CopyFromUser] failed.", __func__);
             return HDF_ERR_IO;
         }
-    } else { /* kernel space */
-        if (memcpy_s(temp, *size, arg, *size) != EOK) {
-            HDF_LOGE("%s: [memcpy_s] failed.", __func__);
-            return HDF_ERR_IO;
-        }
+    } else {
+        HDF_LOGE("%s: illegal user space address.", __func__);
+        return HDF_FAILURE;
     }
     return HDF_SUCCESS;
 }
@@ -434,11 +428,9 @@ int32_t MipiDsiDevCmdCopyToUser(GetDsiCmdDescTag *arg, GetDsiCmdDescTag *temp, u
             HDF_LOGE("%s: [CopyToUser] failed.", __func__);
             return HDF_ERR_IO;
         }
-    } else { /* kernel space */
-        if (memcpy_s(arg, *size, temp, *size) != EOK) {
-            HDF_LOGE("%s: [memcpy_s] failed.", __func__);
-            return HDF_ERR_IO;
-        }
+    } else {
+        HDF_LOGE("%s: illegal user space address.", __func__);
+        return HDF_FAILURE;
     }
     return HDF_SUCCESS;
 }