--- src/tracker-extract/tracker-extract-pdf.c	2011-11-25 09:50:33.000000000 -0500
+++ src/tracker-extract/tracker-extract-pdf.c.new	2011-12-13 22:56:51.251158179 -0500
@@ -338,7 +338,7 @@
 		len = 0;
 	} else {
 		contents = (gchar *) mmap (NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
-		if (contents == NULL) {
+		if (contents == NULL || contents == MAP_FAILED) {
 			g_warning ("Could not mmap pdf file '%s': %s\n",
 			           filename,
 			           g_strerror (errno));