dataman: add silence flag for _file_initialize

src/modules/dataman/dataman.cpp

@@ -113,6 +113,7 @@ static struct {
 		} ram;
 	};
 	bool running;
+	bool silence = false;
 } dm_operations_data;
 
 /** Types of function calls supported by the worker task */
@@ -565,12 +566,12 @@ _file_read(dm_item_t item, unsigned index, void *buf, size_t count)
 	for (int i = 0; i < 2; i++) {
 		int ret_seek = lseek(dm_operations_data.file.fd, offset, SEEK_SET);
 
-		if (ret_seek < 0) {
+		if ((ret_seek < 0) && !dm_operations_data.silence) {
 			PX4_ERR("file read lseek failed %d", errno);
 			continue;
 		}
 
-		if (ret_seek != offset) {
+		if ((ret_seek != offset) && !dm_operations_data.silence) {
 			PX4_ERR("file read lseek failed, incorrect offset %d vs %d", ret_seek, offset);
 			continue;
 		}
@@ -584,7 +585,9 @@ _file_read(dm_item_t item, unsigned index, void *buf, size_t count)
 			break;
 
 		} else {
-			PX4_ERR("file read failed %d", errno);
+			if (!dm_operations_data.silence) {
+				PX4_ERR("file read failed %d", errno);
+			}
 		}
 	}
 
@@ -700,7 +703,9 @@ _file_initialize(unsigned max_offset)
 	if (dm_operations_data.file.fd >= 0) {
 		// Read the mission state and check the hash
 		struct dataman_compat_s compat_state;
+		dm_operations_data.silence = true;
 		int ret = g_dm_ops->read(DM_KEY_COMPAT, 0, &compat_state, sizeof(compat_state));
+		dm_operations_data.silence = false;
 
 		bool incompat = true;