[Wayland-bugs] [Bug 710727] New: Passing a NULL region to gdk_wayland_window_set_opaque_region causes segfault

[gtk+ (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=710727
  gtk+ | wayland | 3.10.x

           Summary: Passing a NULL region to
                    gdk_wayland_window_set_opaque_region causes segfault
    Classification: Platform
           Product: gtk+
           Version: 3.10.x
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: wayland
        AssignedTo: gtk-bugs at gtk.org
        ReportedBy: leighmanthegreat at hotmail.com
         QAContact: gtk-bugs at gtk.org
                CC: rob at robster.org.uk, wayland-bugs at lists.freedesktop.org
     GNOME version: ---


Created an attachment (id=257929)
 --> (https://bugzilla.gnome.org/attachment.cgi?id=257929)
Check region is not NULL

cairo cannot handle being passed a NULL region.
Attached patch fixes this.

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