From: Dmitry Volyntsev <xeioex@nginx.com>
Date: Tue, 26 Jan 2021 12:52:15 +0000 (+0000)
Subject: Fixed allocation failure detection in njs_backtrace_to_string().
X-Git-Tag: 0.5.1~9
X-Git-Url: http://www.kaiwu.me/postgresql/commit/?a=commitdiff_plain;h=08e166158ad566290bcddc3843a424026697c23b;p=njs.git

Fixed allocation failure detection in njs_backtrace_to_string().

Found by Coverity (CID 1472503).
---

diff --git a/src/njs_error.c b/src/njs_error.c
index 2b19c290..0fe92c25 100644
--- a/src/njs_error.c
+++ b/src/njs_error.c
@@ -1226,6 +1226,7 @@ njs_backtrace_to_string(njs_vm_t *vm, njs_arr_t *backtrace, njs_str_t *dst)
 {
     size_t                 count;
     njs_chb_t              chain;
+    njs_int_t              ret;
     njs_uint_t             i;
     njs_backtrace_entry_t  *be, *prev;
 
@@ -1271,8 +1272,8 @@ njs_backtrace_to_string(njs_vm_t *vm, njs_arr_t *backtrace, njs_str_t *dst)
         be++;
     }
 
-    njs_chb_join(&chain, dst);
+    ret = njs_chb_join(&chain, dst);
     njs_chb_destroy(&chain);
 
-    return NJS_OK;
+    return ret;
 }