pch_uart: Set PCIe bus number using probe parameter

commit 6c4b47d243112e98811ce0da7bbb32cc3857dd1a upstream.

Currently, PCIe bus number is set as fixed value "2".
However, PCIe bus number is not always "2".
This patch sets bus number using probe() parameter.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 902588b2a127f7b36ca2d2831bdbd9c30ab20fa6..579ed6b5139fda26c76ddfcd31e9264789698607 100644 (file)
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -602,7 +602,8 @@ static void pch_request_dma(struct uart_port *port)
        dma_cap_zero(mask);
        dma_cap_set(DMA_SLAVE, mask);
 
-       dma_dev = pci_get_bus_and_slot(2, PCI_DEVFN(0xa, 0)); /* Get DMA's dev
+       dma_dev = pci_get_bus_and_slot(priv->pdev->bus->number,
+                                      PCI_DEVFN(0xa, 0)); /* Get DMA's dev
                                                                information */
        /* Set Tx DMA */
        param = &priv->param_tx;