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-rw-r--r--arch/um/drivers/chan_kern.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c
index 6e51424..25e1965 100644
--- a/arch/um/drivers/chan_kern.c
+++ b/arch/um/drivers/chan_kern.c
@@ -210,9 +210,9 @@ void free_irqs(void)
list_for_each(ele, &list) {
chan = list_entry(ele, struct chan, free_list);
- if (chan->input)
+ if (chan->input && chan->enabled)
free_irq(chan->line->driver->read_irq, chan);
- if (chan->output)
+ if (chan->output && chan->enabled)
free_irq(chan->line->driver->write_irq, chan);
chan->enabled = 0;
}
@@ -231,9 +231,9 @@ static void close_one_chan(struct chan *chan, int delay_free_irq)
spin_unlock_irqrestore(&irqs_to_free_lock, flags);
}
else {
- if (chan->input)
+ if (chan->input && chan->enabled)
free_irq(chan->line->driver->read_irq, chan);
- if (chan->output)
+ if (chan->output && chan->enabled)
free_irq(chan->line->driver->write_irq, chan);
chan->enabled = 0;
}
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