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-rw-r--r--drivers/char/isicom.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c
index 26d3f78bf8ed..c837ade1e80b 100644
--- a/drivers/char/isicom.c
+++ b/drivers/char/isicom.c
@@ -564,6 +564,7 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id)
port = card->ports + channel;
if (!(port->flags & ASYNC_INITIALIZED)) {
outw(0x0000, base+0x04); /* enable interrupts */
+ spin_unlock(&card->card_lock);
return IRQ_HANDLED;
}
@@ -678,6 +679,7 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id)
tty_flip_buffer_push(tty);
}
outw(0x0000, base+0x04); /* enable interrupts */
+ spin_unlock(&card->card_lock);
return IRQ_HANDLED;
}