From f31f1d395131f84acbee14f42af8f702bca14468 Mon Sep 17 00:00:00 2001
From: Rene Scharfe <l.s.r@web.de>
Date: Wed, 30 Aug 2017 19:49:40 +0200
Subject: [PATCH] convert: release strbuf on error return in
 filter_buffer_or_fd()

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 convert.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/convert.c b/convert.c
index c5f0b21037..4a0ed8d3cb 100644
--- a/convert.c
+++ b/convert.c
@@ -423,8 +423,10 @@ static int filter_buffer_or_fd(int in, int out, void *data)
 	child_process.in = -1;
 	child_process.out = out;
 
-	if (start_command(&child_process))
+	if (start_command(&child_process)) {
+		strbuf_release(&cmd);
 		return error("cannot fork to run external filter '%s'", params->cmd);
+	}
 
 	sigchain_push(SIGPIPE, SIG_IGN);