From ae6728a7c041d2e48053d642a260b0d862dc62cc Mon Sep 17 00:00:00 2001
From: nanahi <130121847+na-na-hi@users.noreply.github.com>
Date: Tue, 24 Mar 2026 19:03:15 -0400
Subject: [PATCH] misc/io_utils: allow mp_save_to_file writing empty files

---
 misc/io_utils.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/misc/io_utils.c b/misc/io_utils.c
index 9fc9758c61..a7320fc5f6 100644
--- a/misc/io_utils.c
+++ b/misc/io_utils.c
@@ -60,7 +60,7 @@ int mp_mkostemps(char *template, int suffixlen, int flags)
 
 bool mp_save_to_file(const char *filepath, const void *data, size_t size)
 {
-    mp_assert(filepath && data && size);
+    mp_assert(filepath);
 
     bool result = false;
     char *tmp = talloc_asprintf(NULL, "%sXXXXXX", filepath);
@@ -73,7 +73,7 @@ bool mp_save_to_file(const char *filepath, const void *data, size_t size)
         unlink(tmp);
         goto done;
     }
-    size_t written = fwrite(data, size, 1, fs);
+    size_t written = (data && size) ? fwrite(data, size, 1, fs) : 1;
     int ret = fclose(fs);
     if (written > 0 && !ret) {
         ret = rename(tmp, filepath);