diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index c3d8f196b2..effb327ea2 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,8 @@
+2010-01-09  Ian Lance Taylor  <iant@google.com>
+
+	PR other/42230
+	* cp-demangle.c (d_demangle): Return dgs.alc on success.
+
 2010-01-04  Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
 
 	PR target/42316
diff --git a/libiberty/cp-demangle.c b/libiberty/cp-demangle.c
index 43cf34a36c..d37c90efc2 100644
--- a/libiberty/cp-demangle.c
+++ b/libiberty/cp-demangle.c
@@ -4777,7 +4777,7 @@ d_demangle (const char *mangled, int options, size_t *palc)
       return NULL;
     }
 
-  *palc = dgs.allocation_failure ? 1 : 0;
+  *palc = dgs.allocation_failure ? 1 : dgs.alc;
   return dgs.buf;
 }