From fa6c944f4c53acd28aa1392f1d3e8045c1340029 Mon Sep 17 00:00:00 2001
From: HarrisonXi <gpra8764@gmail.com>
Date: Wed, 29 May 2019 18:39:30 +0800
Subject: [PATCH 1/2] remove notification observer to avoid iOS 8 crash

---
 src/objective-c/GRPCClient/GRPCCall.m | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/objective-c/GRPCClient/GRPCCall.m b/src/objective-c/GRPCClient/GRPCCall.m
index 495f94289e7..ba91640269e 100644
--- a/src/objective-c/GRPCClient/GRPCCall.m
+++ b/src/objective-c/GRPCClient/GRPCCall.m
@@ -648,6 +648,8 @@ const char *kCFStreamVarName = "grpc_cfstream";
 }
 
 - (void)dealloc {
+  [GRPCConnectivityMonitor unregisterObserver:self];
+  
   __block GRPCWrappedCall *wrappedCall = _wrappedCall;
   dispatch_async(_callQueue, ^{
     wrappedCall = nil;

From 1259579a945ee442225bb79cbcf0ef01fd470d52 Mon Sep 17 00:00:00 2001
From: Muxi Yan <mxyan@google.com>
Date: Thu, 30 May 2019 08:25:17 -0700
Subject: [PATCH 2/2] clang-format

---
 src/objective-c/GRPCClient/GRPCCall.m | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/objective-c/GRPCClient/GRPCCall.m b/src/objective-c/GRPCClient/GRPCCall.m
index ba91640269e..52ba1356929 100644
--- a/src/objective-c/GRPCClient/GRPCCall.m
+++ b/src/objective-c/GRPCClient/GRPCCall.m
@@ -649,7 +649,7 @@ const char *kCFStreamVarName = "grpc_cfstream";
 
 - (void)dealloc {
   [GRPCConnectivityMonitor unregisterObserver:self];
-  
+
   __block GRPCWrappedCall *wrappedCall = _wrappedCall;
   dispatch_async(_callQueue, ^{
     wrappedCall = nil;