This is an fsfuzzer bug. ->s_journal is set at the end of
ext3_load_journal() but we try to use it in the error handling from
ext3_get_journal() while it's still NULL.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jan Kara <jack@suse.cz> Cc: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>