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um: Use tty_port in SIGWINCH handler

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The tty below tty_port might get destroyed by the tty layer
while we hold a reference to it.
So we have to carry tty_port around...

Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Richard Weinberger
2013-03-11 10:05:45 +01:00
parent cc4f02486c
commit 2116bda6ad
5 changed files with 22 additions and 18 deletions
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2
arch/um/drivers/chan.h
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@@ -37,7 +37,7 @@ extern int console_write_chan(struct chan *chan, const char *buf,
extern int console_open_chan(struct line *line, struct console *co);
extern void deactivate_chan(struct chan *chan, int irq);
extern void reactivate_chan(struct chan *chan, int irq);
extern void chan_enable_winch(struct chan *chan, struct tty_struct *tty);
extern void chan_enable_winch(struct chan *chan, struct tty_port *port);
extern int enable_chan(struct line *line);
extern void close_chan(struct line *line);
extern int chan_window_size(struct line *line,