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-rw-r--r--drivers/serial/8250_pnp.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/serial/8250_pnp.c b/drivers/serial/8250_pnp.c
index ad0755919bcc..1de098e75497 100644
--- a/drivers/serial/8250_pnp.c
+++ b/drivers/serial/8250_pnp.c
@@ -439,7 +439,8 @@ serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
}
memset(&port, 0, sizeof(struct uart_port));
- port.irq = pnp_irq(dev, 0);
+ if (pnp_irq_valid(dev, 0))
+ port.irq = pnp_irq(dev, 0);
if (pnp_port_valid(dev, 0)) {
port.iobase = pnp_port_start(dev, 0);
port.iotype = UPIO_PORT;
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