From 8b54fb0f6ccae1d94c4cf55c6136cebf3bb703c6 Mon Sep 17 00:00:00 2001
From: Paul Cartier <paul.cartier@belledonne-communications.com>
Date: Wed, 27 May 2020 11:02:06 +0200
Subject: [PATCH] fix crash when linphone_core_get_video_device() is NULL

---
 Classes/AssistantView.m | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Classes/AssistantView.m b/Classes/AssistantView.m
index accaa2ae7..4e52dcd52 100644
--- a/Classes/AssistantView.m
+++ b/Classes/AssistantView.m
@@ -1471,14 +1471,14 @@ void assistant_is_account_linked(LinphoneAccountCreator *creator, LinphoneAccoun
     [[UIDevice currentDevice] setValue:value forKey:@"orientation"];
     //[UIViewController attemptRotationToDeviceOrientation];
     AVCaptureDevice *backCamera = [AVCaptureDevice defaultDeviceWithDeviceType:AVCaptureDeviceTypeBuiltInWideAngleCamera mediaType:AVMediaTypeVideo position:AVCaptureDevicePositionBack];
-    if (![[NSString stringWithUTF8String:linphone_core_get_video_device(LC)] containsString:[backCamera uniqueID]]) {
+    if (![[NSString stringWithUTF8String:linphone_core_get_video_device(LC) ?: ""] containsString:[backCamera uniqueID]]) {
         
         bctbx_list_t *deviceList = linphone_core_get_video_devices_list(LC);
         NSMutableArray *devices = [NSMutableArray array];
         
         while (deviceList) {
             char *data = deviceList->data;
-            [devices addObject:[NSString stringWithUTF8String:data]];
+            if (data) [devices addObject:[NSString stringWithUTF8String:data]];
             deviceList = deviceList->next;
         }
         bctbx_list_free(deviceList);