[gthumb] Added NULL check to gfile_get_mime_type

[Michael J. Chudobiak <mjc src gnome org>]

commit 32a0777fa9debd112d81d84bf0ece81c8cfba5a0
Author: Michael J. Chudobiak <mjc avtechpulse com>
Date:   Mon Jun 8 08:40:20 2009 -0400

    Added NULL check to gfile_get_mime_type
---
 libgthumb/gfile-utils.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/libgthumb/gfile-utils.c b/libgthumb/gfile-utils.c
index 99af0ab..7886988 100644
--- a/libgthumb/gfile-utils.c
+++ b/libgthumb/gfile-utils.c
@@ -233,7 +233,7 @@ gfile_get_filename_extension (GFile *file)
 
 const char*
 gfile_get_mime_type (GFile      *file,
-                          gboolean    fast_file_type)
+                     gboolean    fast_file_type)
 {
         const char *value;
         const char *result = NULL;
@@ -255,6 +255,9 @@ gfile_get_mime_type (GFile      *file,
                 else
                         value = g_file_info_get_content_type (info);
 
+		if (!value)
+			return NULL;
+		
                 /*
                  * If the file content is determined to be binary data (octet-stream), check for
                  * HDR file types, which are not well represented in the freedesktop mime database