From 2f0cea6f7330532d0939127c4959873813c2f963 Mon Sep 17 00:00:00 2001
From: Frank Rolsted Jensen <frj@thrane.eu>
Date: Fri, 13 Oct 2023 09:21:25 +0200
Subject: [PATCH] fix mutex unlock if open fails

---
 src/ttynvt.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/ttynvt.c b/src/ttynvt.c
index 8914874..38b7781 100644
--- a/src/ttynvt.c
+++ b/src/ttynvt.c
@@ -427,7 +427,6 @@ static void ttynvt_open(fuse_req_t req, struct fuse_file_info *info)
     int             res;
     int             n;
 
-    pthread_mutex_lock(&access_lock);
 
     tty_cli = calloc(1, sizeof(ttynvt_cli_t));
     if (!tty_cli)
@@ -435,12 +434,16 @@ static void ttynvt_open(fuse_req_t req, struct fuse_file_info *info)
         fuse_reply_err(req, ENOMEM);
         return;
     }
+
+    pthread_mutex_lock(&access_lock);
+
     if (tty == NULL)
         tty = _ttynvt_ctx_create();
     if (!tty)
     {
         fuse_reply_err(req, ENOMEM);
         free(tty_cli);
+        pthread_mutex_unlock(&access_lock);
         return;
     }