34c34
< * $FreeBSD: head/sys/kern/tty_tty.c 83366 2001-09-12 08:38:13Z julian $
---
> * $FreeBSD: head/sys/kern/tty_tty.c 91140 2002-02-23 11:12:57Z tanimura $
45a46,47
> #include <sys/mutex.h>
> #include <sys/sx.h>
83c85
< struct vnode *ttyvp = cttyvp(td);
---
> struct vnode *ttyvp;
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> PROC_LOCK(td->td_proc);
> SESS_LOCK(td->td_proc->p_session);
> ttyvp = cttyvp(td);
> SESS_UNLOCK(td->td_proc->p_session);
> PROC_UNLOCK(td->td_proc);
>
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< register struct vnode *ttyvp = cttyvp(td);
---
> register struct vnode *ttyvp;
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> PROC_LOCK(td->td_proc);
> SESS_LOCK(td->td_proc->p_session);
> ttyvp = cttyvp(td);
> SESS_UNLOCK(td->td_proc->p_session);
> PROC_UNLOCK(td->td_proc);
>
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< struct vnode *ttyvp = cttyvp(uio->uio_td);
---
> struct vnode *ttyvp;
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> PROC_LOCK(td->td_proc);
> SESS_LOCK(td->td_proc->p_session);
> ttyvp = cttyvp(td);
> SESS_UNLOCK(td->td_proc->p_session);
> PROC_UNLOCK(td->td_proc);
>
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< struct vnode *ttyvp = cttyvp(td);
---
> struct vnode *ttyvp;
> int error;
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> PROC_LOCK(td->td_proc);
> SESS_LOCK(td->td_proc->p_session);
> ttyvp = cttyvp(td);
> SESS_UNLOCK(td->td_proc->p_session);
> PROC_UNLOCK(td->td_proc);
>
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< if (!SESS_LEADER(td->td_proc)) {
---
> PROC_LOCK(td->td_proc);
> SESS_LOCK(td->td_proc->p_session);
> error = 0;
> if (!SESS_LEADER(td->td_proc))
156,158c186,190
< return (0);
< } else
< return (EINVAL);
---
> else
> error = EINVAL;
> SESS_UNLOCK(td->td_proc->p_session);
> PROC_UNLOCK(td->td_proc);
> return (error);
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< struct vnode *ttyvp = cttyvp(td);
---
> struct vnode *ttyvp;
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> PROC_LOCK(td->td_proc);
> SESS_LOCK(td->td_proc->p_session);
> ttyvp = cttyvp(td);
> SESS_UNLOCK(td->td_proc->p_session);
> PROC_UNLOCK(td->td_proc);
>