e_day_view_show_popup_menu: Avoid runtime warning from tooltip_get_view_event

The e_day_view_show_popup_menu() can be called with event_num = -1,
which is when the mouse doesn't hover above any event. The function
tooltip_get_view_event() claims a runtime warning in this case, thus
avoid it by properly testing the passed-in value.

1 files changed, 4 insertions, 1 deletions

diff --git a/calendar/gui/e-day-view.c b/calendar/gui/e-day-view.c
index 8f09d27a5b..9950da6566 100644
--- a/calendar/gui/e-day-view.c
+++ b/calendar/gui/e-day-view.c
@@ -4502,7 +4502,10 @@ e_day_view_show_popup_menu (EDayView *day_view,
                             gint day,
                             gint event_num)
 {
-	EDayViewEvent *pevent = tooltip_get_view_event (day_view, day, event_num);
+	EDayViewEvent *pevent = NULL;
+
+	if (event_num >= 0)
+		pevent = tooltip_get_view_event (day_view, day, event_num);
 
 	if (pevent && pevent->canvas_item)
 		tooltip_destroy (day_view, pevent->canvas_item);