1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/serial/8250_pnp.c b/drivers/serial/8250_pnp.c
index 739bc84f91e9..632f62d6ec7e 100644
--- a/drivers/serial/8250_pnp.c
+++ b/drivers/serial/8250_pnp.c
@@ -431,6 +431,8 @@ serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
 #endif
 
         port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
+        if (pnp_irq_flags(dev, 0) & IORESOURCE_IRQ_SHAREABLE)
+                port.flags |= UPF_SHARE_IRQ;
         port.uartclk = 1843200;
         port.dev = &dev->dev;