From c499f2bb36a0b15e4034b05902d5bb5a45d13837 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=9B=D0=B5=D0=BE=D0=BD=D0=B8=D0=B4=20=D0=AE=D1=80=D1=8C?=
 =?UTF-8?q?=D0=B5=D0=B2=20=28Leonid=20Yuriev=29?= <leo@yuriev.ru>
Date: Mon, 27 Jun 2022 13:53:22 +0300
Subject: [PATCH] mdbx: minor fix `EINVAL` from `mdbx_env_set_geometry()`.

Silently growth `size_lower` to the `MIN_PAGENO` instead of returning `MDBX_EINVAL`.
---
 src/core.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/core.c b/src/core.c
index 787cb18f..2a123239 100644
--- a/src/core.c
+++ b/src/core.c
@@ -11796,8 +11796,13 @@ mdbx_env_set_geometry(MDBX_env *env, intptr_t size_lower, intptr_t size_now,
   }
 
   if ((uint64_t)size_lower / pagesize < MIN_PAGENO) {
-    rc = MDBX_EINVAL;
-    goto bailout;
+    size_lower = pagesize * MIN_PAGENO;
+    if (unlikely(size_lower > size_upper)) {
+      rc = MDBX_EINVAL;
+      goto bailout;
+    }
+    if (size_now < size_lower)
+      size_now = size_lower;
   }
 
   if (unlikely((size_t)size_upper > MAX_MAPSIZE ||