Fix uninitialized pointer crash for "Save As"

The "filename" variable was only initialized when the user accepted the
name, so cancelling the file save would randomly use an uninitialized
pointer.

Reported-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/gtk-gui.c b/gtk-gui.c
index 5bc46d2190248be4c7a7c68b121c2766258b9f0b..18c19c79f1cd377d39ad3f846346ed49ef82b9d0 100644 (file)
--- a/gtk-gui.c
+++ b/gtk-gui.c
@@ -173,7 +173,7 @@ static void file_open(GtkWidget *w, gpointer data)
 static void file_save_as(GtkWidget *w, gpointer data)
 {
        GtkWidget *dialog;
-       char *filename;
+       char *filename = NULL;
        dialog = gtk_file_chooser_dialog_new("Save File As",
                GTK_WINDOW(main_window),
                GTK_FILE_CHOOSER_ACTION_SAVE,