kernelshark: Have trace_dialog() use parent_window if parent is NULL

Some places in the code does not have access to a window. Default
to the parent window if the parent is not supplied.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/trace-dialog.c b/trace-dialog.c
index 89415dd..c585277 100644
--- a/trace-dialog.c
+++ b/trace-dialog.c
@@ -267,6 +267,9 @@ GtkResponseType trace_dialog(GtkWindow *parent, enum trace_dialog_type type,
         va_list ap;
         int result;
 
+        if (!parent)
+                parent = GTK_WINDOW(parent_window);
+
         switch (type) {
         case TRACE_GUI_INFO:
                 mtype = GTK_MESSAGE_INFO;