pcim_iomap_table only returns the table of mapping, it does not perform
them. For that, we need to call pcim_iomap, but only if that mapping was
not done before.
Fixes: d0aeaa83f0b0 ("serial: exar: split out the exar code from 8250_pci")
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
---
drivers/tty/serial/8250/8250_exar.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/tty/serial/8250/8250_exar.c
b/drivers/tty/serial/8250/8250_exar.c
index e6b44a7..58469d9 100644
--- a/drivers/tty/serial/8250/8250_exar.c
+++ b/drivers/tty/serial/8250/8250_exar.c
@@ -72,6 +72,9 @@ static int default_setup(struct exar8250 *priv, struct
pci_dev *pcidev,
const struct exar8250_board *board = priv->board;
unsigned int bar = 0;
+ if (!pcim_iomap_table(pcidev)[bar] && !pcim_iomap(pcidev, bar, 0))
+ return -ENOMEM;
+
port->port.iotype = UPIO_MEM;
port->port.mapbase = pci_resource_start(pcidev, bar) + offset;
port->port.membase = pcim_iomap_table(pcidev)[bar] + offset;
--
2.1.4
