Change how dissectors do late-field-registration to avoid a double-registration

assertion.

If a dissector forces registration of fields during dissection it needs to do
so in a way that clears the prefix registration.  Otherwise epan will call the
registration routine a 2nd time (which will cause us to assert out) if a user
types a display filter (with the dissector's prefix) that doesn't exist.

Update the proto_register_prefix() comments to reflect this.

Change-Id: I3ce29243395fb55192bb5dfd950baa88410ac136
Reviewed-on: https://code.wireshark.org/review/15881
Petri-Dish: Jeff Morriss <jeff.morriss.ws@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Jaap Keuter <jaap.keuter@xs4all.nl>

0 files changed, 0 insertions, 0 deletions