* Added error checks to cacaplay

src/cacaplay.c

@@ -52,8 +52,18 @@ int main(int argc, char **argv)
 
     cv = cucul_create_canvas(0, 0);
     app = cucul_create_canvas(0, 0);
-
+    if(cv == NULL || app == NULL)
+    {
+        printf("Can't created canvas\n");
+        return -1;
+    }
     dp = caca_create_display(cv);
+    if(dp == NULL)
+    {
+        printf("Can't create display\n");
+        return -1;
+    }
+
 
     for(;;)
     {