[pty]修正pty引起waitqueue崩溃的问题
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@ -183,8 +183,6 @@ static int ptmx_open(struct dfs_file *fd)
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struct tty_struct *tty = RT_NULL;
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struct tty_struct *pts = RT_NULL;
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struct tty_ldisc *ld = RT_NULL;
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struct rt_lwp *lwp = RT_NULL;
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struct rt_wqueue *wq = RT_NULL;
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tty = (struct tty_struct *)fd->vnode->data;
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RT_ASSERT(tty != RT_NULL);
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@ -203,9 +201,6 @@ static int ptmx_open(struct dfs_file *fd)
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return -1;
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}
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pts_index++;
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lwp = lwp_self();
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wq = wait_queue_get(lwp, tty);
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pts->wait_queue = *wq;
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tty->other_struct = pts;
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ld = tty->ldisc;
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