listbox: short-circuit if no sort function is set
authorChristian Hergert <chergert@redhat.com>
Mon, 20 Jun 2016 22:17:00 +0000 (15:17 -0700)
committerChristian Hergert <chergert@redhat.com>
Tue, 21 Jun 2016 01:51:42 +0000 (18:51 -0700)
commit3724592efb87567691d47e6f02a7cfb2dc014a3d
tree2b2ee40bb0d897c9e9f8f6b92b4a5bc361cb7a39
parent49bd5a97ce9a4bfd1267133c13b1f8883b7e76b9
listbox: short-circuit if no sort function is set

do_sort will crash if sort_func is not defined. Instead of adding a check
there in the hot path, just check for sort_func before invalidating the
sort of the underlying GSequence.
gtk/gtklistbox.c