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um: switch close_chan() to struct line 

... and switch chan_interrupt() to directly calling close_one_chan(),
so we can lose delay_free_irq argument of close_chan() as well.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Al Viro 2011-09-10 08:39:18 -04:00 committed by Richard Weinberger
parent 0fcd719934
commit 10c890c0a3
3 changed files with 11 additions and 9 deletions
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2
arch/um/drivers/chan.h
View File

@ -40,7 +40,7 @@ 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 int enable_chan(struct line *line);
extern void close_chan(struct list_head *chans, int delay_free_irq);
extern void close_chan(struct line *line);
extern int chan_window_size(struct line *line,
unsigned short *rows_out,
unsigned short *cols_out);

16
arch/um/drivers/chan_kern.c
View File

@ -185,7 +185,7 @@ int enable_chan(struct line *line)
return 0;
out_close:
close_chan(&line->chan_list, 0);
close_chan(line);
return err;
}
@ -246,7 +246,7 @@ static void close_one_chan(struct chan *chan, int delay_free_irq)
chan->fd = -1;
}
void close_chan(struct list_head *chans, int delay_free_irq)
void close_chan(struct line *line)
{
struct chan *chan;
@ -255,8 +255,8 @@ void close_chan(struct list_head *chans, int delay_free_irq)
* state. Then, the first one opened will have the original state,
* so it must be the last closed.
*/
list_for_each_entry_reverse(chan, chans, list) {
close_one_chan(chan, delay_free_irq);
list_for_each_entry_reverse(chan, &line->chan_list, list) {
close_one_chan(chan, 0);
}
}
@ -587,10 +587,12 @@ void chan_interrupt(struct line *line, struct tty_struct *tty, int irq)
if (chan->primary) {
if (tty != NULL)
tty_hangup(tty);
close_chan(&line->chan_list, 1);
return;
if (line->chan_out != chan)
close_one_chan(line->chan_out, 1);
}
else close_one_chan(chan, 1);
close_one_chan(chan, 1);
if (chan->primary)
return;
}
out:
if (tty)

2
arch/um/drivers/line.c
View File

@ -465,7 +465,7 @@ void close_lines(struct line *lines, int nlines)
int i;
for(i = 0; i < nlines; i++)
close_chan(&lines[i].chan_list, 0);
close_chan(&lines[i]);
}
int setup_one_line(struct line *lines, int n, char *init,