diff --git a/utils/src/hdf_sref.c b/utils/src/hdf_sref.c
index c66083302c572ed88b5d83709b71316286418ff2..0ec4c87410e4d85e1f5c36c3283eb3e0c5c75cf2 100755
--- a/utils/src/hdf_sref.c
+++ b/utils/src/hdf_sref.c
@@ -1,82 +1,82 @@
-/*
- * Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this list of
- *    conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice, this list
- *    of conditions and the following disclaimer in the documentation and/or other materials
- *    provided with the distribution.
- *
- * 3. Neither the name of the copyright holder nor the names of its contributors may be used
- *    to endorse or promote products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "hdf_sref.h"
+/*
+ * Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
+ * Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *    of conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ *    to endorse or promote products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "hdf_sref.h"
 #include "hdf_log.h"
-
-#define HDF_LOG_TAG hdf_sref
-
-void HdfSRefAcquire(struct HdfSRef *sref)
-{
-    int32_t lockRef;
-    if (sref == NULL) {
-        HDF_LOGE("Acquire input sref is null");
-        return;
-    }
-    OsalAtomicInc(&sref->refs);
-    lockRef = OsalAtomicRead(&sref->refs);
-    if ((lockRef == 1) && (sref->listener != NULL)) {
-        struct IHdfSRefListener *listener = sref->listener;
-        if (listener->OnFirstAcquire != NULL) {
-            listener->OnFirstAcquire(sref);
-        }
-    }
-}
-
-void HdfSRefRelease(struct HdfSRef *sref)
-{
-    int32_t lockRef;
-    if (sref == NULL) {
-        HDF_LOGE("Release input sref is null");
-        return;
-    }
-    OsalAtomicDec(&sref->refs);
-    lockRef = OsalAtomicRead(&sref->refs);
-    if ((lockRef == 0) && (sref->listener != NULL)) {
-        struct IHdfSRefListener *listener = sref->listener;
-        if (listener->OnLastRelease != NULL) {
-            listener->OnLastRelease(sref);
-        }
-    }
-}
-
-void HdfSRefConstruct(struct HdfSRef *sref, struct IHdfSRefListener *listener)
-{
-    if ((sref == NULL) || (listener == NULL)) {
-        HDF_LOGE("Input params is invalid");
-        return;
-    }
-    OsalAtomicSet(&sref->refs, 0);
-    sref->listener = listener;
-    sref->Acquire = HdfSRefAcquire;
-    sref->Release = HdfSRefRelease;
-}
-
+
+#define HDF_LOG_TAG hdf_sref
+
+void HdfSRefAcquire(struct HdfSRef *sref)
+{
+    int32_t lockRef;
+    if (sref == NULL) {
+        HDF_LOGE("Acquire input sref is null");
+        return;
+    }
+    OsalAtomicInc(&sref->refs);
+    lockRef = OsalAtomicRead(&sref->refs);
+    if ((lockRef == 1) && (sref->listener != NULL)) {
+        struct IHdfSRefListener *listener = sref->listener;
+        if (listener->OnFirstAcquire != NULL) {
+            listener->OnFirstAcquire(sref);
+        }
+    }
+}
+
+void HdfSRefRelease(struct HdfSRef *sref)
+{
+    int32_t lockRef;
+    if (sref == NULL) {
+        HDF_LOGE("Release input sref is null");
+        return;
+    }
+    OsalAtomicDec(&sref->refs);
+    lockRef = OsalAtomicRead(&sref->refs);
+    if ((lockRef == 0) && (sref->listener != NULL)) {
+        struct IHdfSRefListener *listener = sref->listener;
+        if (listener->OnLastRelease != NULL) {
+            listener->OnLastRelease(sref);
+        }
+    }
+}
+
+void HdfSRefConstruct(struct HdfSRef *sref, struct IHdfSRefListener *listener)
+{
+    if ((sref == NULL) || (listener == NULL)) {
+        HDF_LOGE("Input params is invalid");
+        return;
+    }
+    OsalAtomicSet(&sref->refs, 0);
+    sref->listener = listener;
+    sref->Acquire = HdfSRefAcquire;
+    sref->Release = HdfSRefRelease;
+}
+