[PATCH] libdwfl: Don't leak memory in proc_maps_report when ENOEXEC.

[Mark Wielaard <mjw@redhat.com>]

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We forgot to free last_file on error.

Signed-off-by: Mark Wielaard <mjw@redhat.com>
---
 libdwfl/ChangeLog         | 4 ++++
 libdwfl/linux-proc-maps.c | 3 ++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/libdwfl/ChangeLog b/libdwfl/ChangeLog
index 903c0cc..69fd233 100644
--- a/libdwfl/ChangeLog
+++ b/libdwfl/ChangeLog
@@ -1,5 +1,9 @@
 2016-02-13  Mark Wielaard  <mjw@redhat.com>
 
+	* linux-proc-maps.c (proc_maps_report): Free last_file when ENOEXEC.
+
+2016-02-13  Mark Wielaard  <mjw@redhat.com>
+
 	* frame_unwind.c (new_unwound): Check and return unwound.
 	(handle_cfi): Check new_unwound was able to allocate new memory
 	before use. Return DWFL_E_NOMEM otherwise.
diff --git a/libdwfl/linux-proc-maps.c b/libdwfl/linux-proc-maps.c
index 9e7b2a2..94b26d5 100644
--- a/libdwfl/linux-proc-maps.c
+++ b/libdwfl/linux-proc-maps.c
@@ -1,5 +1,5 @@
 /* Standard libdwfl callbacks for debugging a live Linux process.
-   Copyright (C) 2005-2010, 2013, 2014 Red Hat, Inc.
+   Copyright (C) 2005-2010, 2013, 2014, 2016 Red Hat, Inc.
    This file is part of elfutils.
 
    This file is free software; you can redistribute it and/or modify
@@ -218,6 +218,7 @@ proc_maps_report (Dwfl *dwfl, FILE *f, GElf_Addr sysinfo_ehdr, pid_t pid)
 	  || nread <= 0)
 	{
 	  free (line);
+	  free (last_file);
 	  return ENOEXEC;
 	}
 
-- 
2.5.0