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fix lwp_free tty switch to foreground error (#7945)

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geniusgogo 2023-08-12 10:50:45 +08:00 committed by GitHub
parent 1b5ed06d38
commit a6959a9ef8
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1 changed files with 8 additions and 3 deletions
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11
components/lwp/lwp_pid.c
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@ -469,13 +469,18 @@ void lwp_free(struct rt_lwp* lwp)
if (lwp->tty != RT_NULL) if (lwp->tty != RT_NULL)
{ {
rt_mutex_take(&lwp->tty->lock, RT_WAITING_FOREVER); rt_mutex_take(&lwp->tty->lock, RT_WAITING_FOREVER);
old_lwp = tty_pop(&lwp->tty->head, RT_NULL);
rt_mutex_release(&lwp->tty->lock);
if (lwp->tty->foreground == lwp) if (lwp->tty->foreground == lwp)
{ {
old_lwp = tty_pop(&lwp->tty->head, RT_NULL);
lwp->tty->foreground = old_lwp; lwp->tty->foreground = old_lwp;
lwp->tty = RT_NULL;
} }
else
{
tty_pop(&lwp->tty->head, lwp);
}
rt_mutex_release(&lwp->tty->lock);
lwp->tty = RT_NULL;
} }
} }
else else