4246     struct target_msgbuf *target_mb;  in do_msgsnd()  local
4254     if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))  in do_msgsnd()
4258         unlock_user_struct(target_mb, msgp, 0);  in do_msgsnd()
4261     host_mb->mtype = (abi_long) tswapal(target_mb->mtype);  in do_msgsnd()
4262     memcpy(host_mb->mtext, target_mb->mtext, msgsz);  in do_msgsnd()
4279     unlock_user_struct(target_mb, msgp, 0);  in do_msgsnd()
4302     struct target_msgbuf *target_mb;  in do_msgrcv()  local
4311     if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))  in do_msgrcv()
4337         memcpy(target_mb->mtext, host_mb->mtext, ret);  in do_msgrcv()
4341     target_mb->mtype = tswapal(host_mb->mtype);  in do_msgrcv()
4344     if (target_mb)  in do_msgrcv()
4345         unlock_user_struct(target_mb, msgp, 1);  in do_msgrcv()