From b560535c708ab62fb72549e928dba444c8e8b0ef Mon Sep 17 00:00:00 2001
From: sunxudong <sumx4ever@163.com>
Date: Wed, 20 May 2020 14:53:25 +0800
Subject: [PATCH] =?UTF-8?q?=E6=96=B0=E5=A2=9E=E5=81=9C=E6=AD=A2=E4=B8=B2?=
 =?UTF-8?q?=E5=8F=A3,bug=E4=BF=AE=E6=94=B9?=
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---
 serial/build.gradle                                       | 4 ++--
 serial/src/main/java/org/sheedon/serial/SerialClient.java | 3 ++-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/serial/build.gradle b/serial/build.gradle
index 46b7f05..d0cb832 100644
--- a/serial/build.gradle
+++ b/serial/build.gradle
@@ -8,8 +8,8 @@ android {
     defaultConfig {
         minSdkVersion 15
         targetSdkVersion 28
-        versionCode 10
-        versionName "1.2.6"
+        versionCode 11
+        versionName "1.2.7"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         consumerProguardFiles 'consumer-rules.pro'
diff --git a/serial/src/main/java/org/sheedon/serial/SerialClient.java b/serial/src/main/java/org/sheedon/serial/SerialClient.java
index ad8005b..0e79135 100644
--- a/serial/src/main/java/org/sheedon/serial/SerialClient.java
+++ b/serial/src/main/java/org/sheedon/serial/SerialClient.java
@@ -79,7 +79,8 @@ public Observable newObservable(Request request) {
     }
 
     public void destroy() {
-        port.closeSerialPort();
+        if (port != null)
+            port.closeSerialPort();
         port = null;
     }