From 6d2914c99bf5bd672147f00fc290569b1bb33a8f Mon Sep 17 00:00:00 2001
From: Leonid Yuriev <leo@yuriev.ru>
Date: Wed, 25 Nov 2020 17:53:55 +0300
Subject: [PATCH] mdbx: minor/insignificant fix checking `mdbx_rdt_lock()`
 result for cases mutex-recovery after `EOWNERDEAD`.

Change-Id: Ia5e13ea0d72afc97f7d678832a765a192dfacdff
---
 src/core.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/core.c b/src/core.c
index ab2ef829..7400d4eb 100644
--- a/src/core.c
+++ b/src/core.c
@@ -4803,9 +4803,11 @@ static __cold int mdbx_mapresize(MDBX_env *env, const pgno_t used_pgno,
     goto bailout;
 
   if (limit_bytes != env->me_dxb_mmap.limit && env->me_lck && !implicit) {
-    rc = mdbx_rdt_lock(env) /* lock readers table until remap done */;
-    if (unlikely(rc != MDBX_SUCCESS))
+    int err = mdbx_rdt_lock(env) /* lock readers table until remap done */;
+    if (unlikely(MDBX_IS_ERROR(err))) {
+      rc = err;
       goto bailout;
+    }
 
     /* looking for readers from this process */
     MDBX_lockinfo *const lck = env->me_lck;
@@ -9538,9 +9540,11 @@ mdbx_env_set_geometry(MDBX_env *env, intptr_t size_lower, intptr_t size_now,
           rc = MDBX_EPERM;
           goto bailout;
         }
-        rc = mdbx_rdt_lock(env);
-        if (unlikely(rc != MDBX_SUCCESS))
+        int err = mdbx_rdt_lock(env);
+        if (unlikely(MDBX_IS_ERROR(err))) {
+          rc = err;
           goto bailout;
+        }
 
         /* Check if there are any reading threads that do not use the SRWL */
         const size_t CurrentTid = GetCurrentThreadId();