From e80b814d7d95d222266699cef2779523a2eac7d9 Mon Sep 17 00:00:00 2001
From: Matthias Ringwald <matthias@ringwald.ch>
Date: Fri, 13 Sep 2019 15:00:29 +0200
Subject: [PATCH] hci_transport_h4: avoid calling
 hci_transport_h4_trigger_next_read when transport is closed

---
 src/hci_transport_h4.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/hci_transport_h4.c b/src/hci_transport_h4.c
index 0cb2f3bbd..4043f3525 100644
--- a/src/hci_transport_h4.c
+++ b/src/hci_transport_h4.c
@@ -291,7 +291,7 @@ static void hci_transport_h4_block_read(void){
 
         case H4_OFF:
             bytes_to_read = 0;
-            return;
+            break;
     }
 
 #ifdef ENABLE_BAUDRATE_CHANGE_FLOWCONTROL_BUG_WORKAROUND
@@ -303,7 +303,9 @@ static void hci_transport_h4_block_read(void){
     }
 #endif
 
-    hci_transport_h4_trigger_next_read();
+    if (h4_state != H4_OFF) {
+        hci_transport_h4_trigger_next_read();
+    }
 }
 
 static void hci_transport_h4_block_sent(void){