From b6420e12a967b8e96fd87a86dd8d105962bfdf8b Mon Sep 17 00:00:00 2001
From: moneromooo-monero <moneromooo-monero@users.noreply.github.com>
Date: Sat, 13 Apr 2019 23:37:03 +0000
Subject: [PATCH] lmdb: catch non-LMDB negative errors before strerror

That should hopefully shut coverity up
---
 external/db_drivers/liblmdb/mdb.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/external/db_drivers/liblmdb/mdb.c b/external/db_drivers/liblmdb/mdb.c
index 8e67d5981..ba1315401 100644
--- a/external/db_drivers/liblmdb/mdb.c
+++ b/external/db_drivers/liblmdb/mdb.c
@@ -1742,6 +1742,8 @@ mdb_strerror(int err)
 		NULL, err, 0, ptr, MSGSIZE, (va_list *)buf+MSGSIZE);
 	return ptr;
 #else
+	if (err < 0)
+		return "Invalid error code";
 	return strerror(err);
 #endif
 }