fixed bugs in linux_ram:getLinuxRamInfo

internal/system_check/linux_ram.go

@@ -18,35 +18,40 @@ func getLinuxRamInfo() (MemoryInformation, error) {
 	if err != nil {
 		return MemoryInformation{}, fmt.Errorf("Could not find /proc/meminfo. Are you sure you are on linux?")
 	}
+	defer memoryFile.Close()
+
 	fileReader := bufio.NewScanner(memoryFile)
 
 	var TotalMemory uint64
 	var AvailMemory uint64
 
 	for fileReader.Scan() {
-
-		if fileReader.Err() != nil {
-			return MemoryInformation{}, fmt.Errorf("There was an error while reading /proc/meninfo. Error: %v", fileReader.Err())
-		}
-
 		line := fileReader.Text()
 
-		if strings.Contains(line, "MemTotal") {
+		if strings.HasPrefix(line, "MemTotal:") {
 			TotalMemory, err = strconv.ParseUint(numberRegex.FindString(line), 10, 64)
 			if err != nil {
 				return MemoryInformation{}, fmt.Errorf("Could not parse total memory from /proc/meminfo")
 			}
-		} else if strings.Contains(line, "MemAvailable") {
+		} else if strings.HasPrefix(line, "MemAvailable:") {
 			AvailMemory, err = strconv.ParseUint(numberRegex.FindString(line), 10, 64)
 			if err != nil {
 				return MemoryInformation{}, fmt.Errorf("Could not parse available memory from /proc/meminfo")
 			}
 		}
+
+		if TotalMemory > 0 && AvailMemory > 0 {
+			break
+		}
+	}
+
+	if fileReader.Err() != nil {
+		return MemoryInformation{}, fmt.Errorf("There was an error while reading /proc/meninfo. Error: %v", fileReader.Err())
 	}
 
 	return MemoryInformation{
-		SystemMemory:    TotalMemory,
+		SystemMemory:    TotalMemory * 1024,
-		AvailableMemory: AvailMemory,
+		AvailableMemory: AvailMemory * 1024,
 	}, nil
 }