diff --git a/samgr_endpoint/source/default_client_mini_adapter.c b/samgr_endpoint/source/default_client_mini_adapter.c
index cc66513613f24b1f83bdd2cd1930de305795d96c..0b820711e9e455579fde34d758b3654358ed13c3 100644
--- a/samgr_endpoint/source/default_client_mini_adapter.c
+++ b/samgr_endpoint/source/default_client_mini_adapter.c
@@ -44,11 +44,14 @@ void ProxyInvokeArgInner(IpcIo *reply, IClientHeader *header)
 SvcIdentity QueryRemoteIdentityInner(const char *deviceId, const char *service, const char *feature)
 {
     char saName[MAX_COUNT_NUM * MAX_NAME_LEN + MAX_COUNT_NUM];
-    (void)sprintf_s(saName, MAX_COUNT_NUM * MAX_NAME_LEN + MAX_COUNT_NUM,
+    int count = sprintf_s(saName, MAX_COUNT_NUM * MAX_NAME_LEN + MAX_COUNT_NUM,
         "%s#%s", service?service:"", feature?feature:"");
     HILOG_INFO(HILOG_MODULE_SAMGR, "saName %s, make remote binder start", saName);
-
     SvcIdentity target = {INVALID_INDEX, INVALID_INDEX, INVALID_INDEX};
+    if (count < 0) {
+        HILOG_ERROR(HILOG_MODULE_SAMGR, "sprintf_s failed");
+        return target;
+    }
     SaNode *saNode = GetSaNodeBySaName(service, feature);
     if (saNode == NULL) {
         HILOG_ERROR(HILOG_MODULE_SAMGR, "service: %s feature: %s have no saId in sa map", service, feature);