From 278ee0db76cd39682a0d0469ad9d6946828ce05f Mon Sep 17 00:00:00 2001
From: Daira Hopwood <daira@jacaranda.org>
Date: Tue, 2 Feb 2016 18:55:34 +0000
Subject: [PATCH] Fix an error handling path that would never have been
 reached. fixes ticket:2543

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
---
 src/allmydata/mutable/layout.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/allmydata/mutable/layout.py b/src/allmydata/mutable/layout.py
index b938794f..40fd9331 100644
--- a/src/allmydata/mutable/layout.py
+++ b/src/allmydata/mutable/layout.py
@@ -1171,7 +1171,7 @@ class MDMFSlotWriteProxy:
             else:
                 if on_success: on_success()
             return results
-        d.addCallback(_result)
+        d.addBoth(_result)
         return d
 
 def _handle_bad_struct(f):
-- 
2.45.2