bsd/kern/ubc_subr.c

815 		uip->ui_ucred = NOCRED;
899 	if (IS_VALID_CRED(uip->ui_ucred)) {
900 		kauth_cred_unref(&uip->ui_ucred);
1135 	        return (vp->v_ubcinfo->ui_ucred);
1211 	credp = uip->ui_ucred;
1216 			uip->ui_ucred = kauth_cred_proc_ref(p);
1218 			uip->ui_ucred = uthread->uu_ucred;
1219 			kauth_cred_ref(uip->ui_ucred);
1271 	credp = uip->ui_ucred;
1273 		uip->ui_ucred = kauth_cred_proc_ref(p);