[gnome-epub-thumbnailer] main: Fix memory leaks

[Bastien Nocera <hadess src gnome org>]

commit 14f1af6cca37af32910f01929c2db9d766238f41
Author: Bastien Nocera <hadess hadess net>
Date:   Sat Jul 13 11:19:41 2013 +0200

    main: Fix memory leaks

 gnome-epub-thumbnailer.c |   11 ++++++++++-
 1 files changed, 10 insertions(+), 1 deletions(-)
---
diff --git a/gnome-epub-thumbnailer.c b/gnome-epub-thumbnailer.c
index 3b23be8..59cea52 100644
--- a/gnome-epub-thumbnailer.c
+++ b/gnome-epub-thumbnailer.c
@@ -139,6 +139,7 @@ get_prop_for_xpath (xmlDocPtr           doc,
 {
        xmlXPathObjectPtr xpath_obj;
        xmlNodePtr cur;
+       xmlChar *prop;
        char *ret;
 
        xpath_obj = xmlXPathEvalExpression (BAD_CAST (path), xpath_ctx);
@@ -149,7 +150,12 @@ get_prop_for_xpath (xmlDocPtr           doc,
                return NULL;
        }
        cur = xpath_obj->nodesetval->nodeTab[0];
-       ret = g_strdup ((const char *) xmlGetProp (cur, BAD_CAST (name)));
+       prop = xmlGetProp (cur, BAD_CAST (name));
+       ret = NULL;
+       if (prop) {
+               ret = g_strdup ((const char *) prop);
+               xmlFree (prop);
+       }
        xmlXPathFreeObject (xpath_obj);
 
        return ret;
@@ -238,6 +244,7 @@ get_cover_path_from_root_file (const char *metafile,
        cover_path = full_cover_path;
 
 bail:
+       g_free (root_path);
        xmlXPathFreeContext(xpath_ctx);
        xmlFreeDoc (doc);
 
@@ -309,6 +316,8 @@ int main (int argc, char **argv)
                cover_data = file_get_zipped_contents (input_filename, regex_matches, regex, &length);
        }
 
+       g_free (input_filename);
+
        mem_stream = g_memory_input_stream_new_from_data (cover_data, length, g_free);
        pixbuf = gdk_pixbuf_new_from_stream_at_scale (mem_stream, output_size, -1, TRUE, NULL, NULL);
        g_object_unref (mem_stream);