ChangeLog, journal.c:

ChangeLog, journal.c:
  journal.c: Make sure all functions which return an error code use the
  	errcode_t return type, and not "int"
  	(e2fsck_journal_release): Add new parameter, "drop", which is used
  	when we just want to deallocate the journal without trying to write
  	out any changes.
  	(mark_buffer_clean): New function e2fsck_check_ext3_journal): If we
  	fail loading the journal, make sure we free all memory associated with
  	it.
  	(recover_ext3_journal): If we fail to load the journal or initialize
  	the revoke data structures, make sure we free all memory associated
  	with the journal.