From dcccf3aa85ab5854bf743885eb6cf4cf8242eb0d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?V=C3=ADtor=20Santos=20Costa?= <vsc@xato.(none)>
Date: Wed, 16 Mar 2011 00:15:15 +0000
Subject: [PATCH] catch null access.

---
 library/dialect/swi/fli/blobs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/library/dialect/swi/fli/blobs.c b/library/dialect/swi/fli/blobs.c
index c122811f4..4dd807231 100644
--- a/library/dialect/swi/fli/blobs.c
+++ b/library/dialect/swi/fli/blobs.c
@@ -61,7 +61,8 @@ lookupBlob(void *blob, size_t len, PL_blob_t *type)
     /* just keep a linked chain for now */
     ae = SWI_Blobs;
     while (ae) {
-      if (RepBlobProp(ae->PropsOfAE)->blob_t == type &&
+      if (ae->PropsOfAE &&
+	  RepBlobProp(ae->PropsOfAE)->blob_t == type &&
 	  ae->rep.blob->length == len &&
 	  !memcmp(ae->rep.blob->data, blob, len))
 	return ae;