[grilo-plugins] [filesystem] Prevent critical when getting URI from a filename

[Juan A. Suarez Romero <jasuarez src gnome org>]

commit bac6ef464352fccdfe3b98e0cccb740d3355e53a
Author: Joaquim Rocha <jrocha igalia com>
Date:   Wed Jun 2 17:37:18 2010 +0200

    [filesystem] Prevent critical when getting URI from a filename
    
    Verifies that the filename is not NULL before getting the URI.

 src/filesystem/grl-filesystem.c |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)
---
diff --git a/src/filesystem/grl-filesystem.c b/src/filesystem/grl-filesystem.c
index 0131955..b95c3c0 100644
--- a/src/filesystem/grl-filesystem.c
+++ b/src/filesystem/grl-filesystem.c
@@ -361,10 +361,12 @@ create_content (GrlMedia *content,
       const gchar *thumb =
         g_file_info_get_attribute_byte_string (info,
                                                G_FILE_ATTRIBUTE_THUMBNAIL_PATH);
-      gchar *thumb_uri = g_filename_to_uri (thumb, NULL, NULL);
-      if (thumb_uri) {
-        grl_media_set_thumbnail (GRL_DATA (media), thumb_uri);
-        g_free (thumb_uri);
+      if (thumb) {
+	gchar *thumb_uri = g_filename_to_uri (thumb, NULL, NULL);
+	if (thumb_uri) {
+	  grl_media_set_thumbnail (GRL_DATA (media), thumb_uri);
+	  g_free (thumb_uri);
+	}
       }
     }