dovecot-2.2: lib-fs: Don't crash if istream-fs-file is closed wi...

[dovecot at dovecot.org]

details:   http://hg.dovecot.org/dovecot-2.2/rev/37054c79e04b
changeset: 16951:37054c79e04b
user:      Timo Sirainen <tss at iki.fi>
date:      Fri Nov 08 17:44:25 2013 +0200
description:
lib-fs: Don't crash if istream-fs-file is closed without never being read.

diffstat:

 src/lib-fs/istream-fs-file.c |  3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diffs (13 lines):

diff -r 02a746fd9830 -r 37054c79e04b src/lib-fs/istream-fs-file.c
--- a/src/lib-fs/istream-fs-file.c	Fri Nov 08 16:40:13 2013 +0100
+++ b/src/lib-fs/istream-fs-file.c	Fri Nov 08 17:44:25 2013 +0200
@@ -15,7 +15,8 @@
 {
 	struct fs_file_istream *fstream = (struct fs_file_istream *)stream;
 
-	i_stream_destroy(&fstream->istream.parent);
+	if (fstream->istream.parent != NULL)
+		i_stream_destroy(&fstream->istream.parent);
 	fs_file_deinit(&fstream->file);
 }