[gnome-photos] utils: Consolidate the return and assert a post-condition

[Debarshi Ray <debarshir src gnome org>]

commit 726887766dac44efcbbde4c3ec8616530fa58acc
Author: Debarshi Ray <debarshir gnome org>
Date:   Wed Dec 13 14:11:42 2017 +0100

    utils: Consolidate the return and assert a post-condition

 src/photos-utils.c |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/src/photos-utils.c b/src/photos-utils.c
index 64a58ff..82a2b7e 100644
--- a/src/photos-utils.c
+++ b/src/photos-utils.c
@@ -116,14 +116,19 @@ gchar *
 photos_utils_convert_path_to_uri (const gchar *path)
 {
   g_autoptr (GFile) file = NULL;
-  gchar *uri;
+  gchar *uri = NULL;
 
   if (path == NULL)
-    return g_strdup ("");
+    {
+      uri = g_strdup ("");
+      goto out;
+    }
 
   file = g_file_new_for_path (path);
   uri = g_file_get_uri (file);
 
+ out:
+  g_return_val_if_fail (uri != NULL, NULL);
   return uri;
 }