Do something half-way sane (no SIGSEGV) when there are no dives

It just leaves ugly blank areas, but whatever.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/profile.c b/profile.c
index f898be745..9d84ff29d 100644
--- a/profile.c
+++ b/profile.c
@@ -100,7 +100,7 @@ static void plot(cairo_t *cr, int w, int h, struct dive *dive, int samples, stru
 
 static gboolean expose_event(GtkWidget *widget, GdkEventExpose *event, gpointer data)
 {
-	struct dive *dive = dive_table.dives[selected_dive];
+	struct dive *dive = current_dive;
 	cairo_t *cr;
 	int w,h;
 
@@ -111,7 +111,7 @@ static gboolean expose_event(GtkWidget *widget, GdkEventExpose *event, gpointer
 	cairo_set_source_rgb(cr, 0, 0, 0);
 	cairo_paint(cr);
 
-	if (dive->samples)
+	if (dive && dive->samples)
 		plot(cr, w, h, dive, dive->samples, dive->sample);
 
 	cairo_destroy(cr);