From 2a381a82a6e1bc2bd5d2f43a08fce50a1994f2e8 Mon Sep 17 00:00:00 2001
From: Max Romanov <max.romanov@nginx.com>
Date: Thu, 19 Nov 2020 13:49:12 +0300
Subject: [PATCH] Libunit: fixing read buffer leakage.

If shared queue is empty, allocated read buffer should be explicitly
released.

Found by Coverity (CID 363943).
The issue was introduced in f5ba5973a0a3.
---
 src/nxt_unit.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/nxt_unit.c b/src/nxt_unit.c
index 0790afc4..097f50d6 100644
--- a/src/nxt_unit.c
+++ b/src/nxt_unit.c
@@ -4948,6 +4948,7 @@ nxt_unit_dequeue_request(nxt_unit_ctx_t *ctx)
 
     rc = nxt_unit_app_queue_recv(lib->shared_port, rbuf);
     if (rc != NXT_UNIT_OK) {
+        nxt_unit_read_buf_release(ctx, rbuf);
         goto done;
     }