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path: root/arch/um/drivers/chan_kern.c
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Diffstat (limited to 'arch/um/drivers/chan_kern.c')
-rw-r--r--arch/um/drivers/chan_kern.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c
index 4744b5840fa..ca4c7ebfd0a 100644
--- a/arch/um/drivers/chan_kern.c
+++ b/arch/um/drivers/chan_kern.c
@@ -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)