From c10218eb3b428eae1e961983d6911cfeecb403a1 Mon Sep 17 00:00:00 2001
From: Tobias Markus <tobbi@mozilla-uk.org>
Date: Mon, 23 Feb 2015 01:19:54 +0100
Subject: [PATCH] Fix for coverity #29369

---
 external/obstack/obstack.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/external/obstack/obstack.c b/external/obstack/obstack.c
index 7f51a271f4f..15e2bc1ea39 100644
--- a/external/obstack/obstack.c
+++ b/external/obstack/obstack.c
@@ -136,8 +136,10 @@ _obstack_begin (struct obstack *h,
   h->use_extra_arg = 0;
 
   chunk = h->chunk = CALL_CHUNKFUN (h, h -> chunk_size);
-  if (!chunk)
+  if (!chunk) {
     (*obstack_alloc_failed_handler) ();
+    return 0;
+  }
   h->next_free = h->object_base = __PTR_ALIGN ((char *) chunk, chunk->contents,
 					       alignment - 1);
   h->chunk_limit = chunk->limit