From c7065f1f8953a73fe6eeaeb0cdb8adb5dbe99265 Mon Sep 17 00:00:00 2001
From: Stefano Sabatini <stefasab@gmail.com>
Date: Tue, 23 Oct 2012 01:42:24 +0200
Subject: [PATCH] lavfi/sendcmd: release file in case of failed allocation

Avoid hanging file.
---
 libavfilter/f_sendcmd.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavfilter/f_sendcmd.c b/libavfilter/f_sendcmd.c
index 7081de815d..9f1704586e 100644
--- a/libavfilter/f_sendcmd.c
+++ b/libavfilter/f_sendcmd.c
@@ -398,8 +398,10 @@ static av_cold int init(AVFilterContext *ctx, const char *args)
 
         /* create a 0-terminated string based on the read file */
         buf = av_malloc(file_bufsize + 1);
-        if (!buf)
+        if (!buf) {
+            av_file_unmap(file_buf, file_bufsize);
             return AVERROR(ENOMEM);
+        }
         memcpy(buf, file_buf, file_bufsize);
         buf[file_bufsize] = 0;
         av_file_unmap(file_buf, file_bufsize);