From e6f7570137b0aab0a05f2385b9ca5232c4e225a9 Mon Sep 17 00:00:00 2001
From: Dominik Schmidt <dominik@schm1dt.ch>
Date: Tue, 17 Mar 2020 17:03:19 +0100
Subject: [PATCH] We should not free the camera variable if it is null.

This could happen in some circumstances, so we test for that case.
---
 src/gphoto-preview.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/gphoto-preview.c b/src/gphoto-preview.c
index f0bd2ff..e9c1292 100644
--- a/src/gphoto-preview.c
+++ b/src/gphoto-preview.c
@@ -183,9 +183,11 @@ static void capture_terminate(void *vptr){
         os_event_destroy(data->event);
     }
 
-    gp_camera_exit(data->camera, data->gp_context);
-    gp_camera_free(data->camera);
-    data->camera = NULL;
+    if(data->camera) {
+        gp_camera_exit(data->camera, data->gp_context);
+        gp_camera_free(data->camera);
+        data->camera = NULL;
+    }
 }
 
 static void capture_update(void *vptr, obs_data_t *settings){
@@ -383,4 +385,4 @@ struct obs_source_info capture_preview_info = {
     .hide           = capture_hide,
     .get_width      = capture_getwidth,
     .get_height     = capture_getheight,
-};
\ No newline at end of file
+};