[gnome-panel] keyfile: fix memory leak

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 16436d9b866d4ef3a203410bc50a55c5b948e5ab
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Thu Mar 3 13:42:58 2022 +0200

    keyfile: fix memory leak
    
    Coverity CID: #1514685

 gnome-panel/libpanel-util/panel-keyfile.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/gnome-panel/libpanel-util/panel-keyfile.c b/gnome-panel/libpanel-util/panel-keyfile.c
index 22934f4b1..a4d9df1ee 100644
--- a/gnome-panel/libpanel-util/panel-keyfile.c
+++ b/gnome-panel/libpanel-util/panel-keyfile.c
@@ -115,6 +115,7 @@ panel_key_file_to_file (GKeyFile     *keyfile,
 
        if (write_error) {
                g_propagate_error (error, write_error);
+               g_free (filename);
                g_free (data);
                return FALSE;
        }