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Differential D36268 Diff 109596 sys/kern/tty_tty.c

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sys/kern/tty_tty.c

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{ {
struct proc *p; struct proc *p;
if (*dev != NULL) if (*dev != NULL)
return; return;
if (strcmp(name, "tty")) if (strcmp(name, "tty"))
return; return;
p = curproc; p = curproc;
sx_sunlock(&clone_drain_lock);
sx_slock(&proctree_lock); sx_slock(&proctree_lock);
sx_slock(&clone_drain_lock);
dev_lock(); dev_lock();
if (!(p->p_flag & P_CONTROLT)) if (!(p->p_flag & P_CONTROLT))
*dev = ctty; *dev = ctty;
else if (p->p_session->s_ttyvp == NULL) else if (p->p_session->s_ttyvp == NULL)
*dev = ctty; *dev = ctty;
else if (p->p_session->s_ttyvp->v_type == VBAD || else if (p->p_session->s_ttyvp->v_type == VBAD ||
p->p_session->s_ttyvp->v_rdev == NULL) { p->p_session->s_ttyvp->v_rdev == NULL) {
/* e.g. s_ttyvp was revoked */ /* e.g. s_ttyvp was revoked */
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