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serial: 8250_pci: convert to pcim_*() API

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The managed API provides a better approach to help with acquiring and releasing
resources. Besides that error handling becomes simpler.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andy Shevchenko 2016-02-15 18:01:51 +02:00 committed by Greg Kroah-Hartman
parent 31f28cc2a2
commit 3f64b1d327
1 changed files with 8 additions and 24 deletions
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32
drivers/tty/serial/8250/8250_pci.c
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@ -55,7 +55,6 @@ struct pci_serial_quirk {
struct serial_private {
struct pci_dev *dev;
unsigned int nr;
void __iomem *remapped_bar[PCI_NUM_BAR_RESOURCES];
struct pci_serial_quirk *quirk;
int line[0];
};
@ -85,15 +84,13 @@ setup_port(struct serial_private *priv, struct uart_8250_port *port,
return -EINVAL;
if (pci_resource_flags(dev, bar) & IORESOURCE_MEM) {
if (!priv->remapped_bar[bar])
priv->remapped_bar[bar] = pci_ioremap_bar(dev, bar);
if (!priv->remapped_bar[bar])
if (!pcim_iomap(dev, bar, 0) && !pcim_iomap_table(dev))
return -ENOMEM;
port->port.iotype = UPIO_MEM;
port->port.iobase = 0;
port->port.mapbase = pci_resource_start(dev, bar) + offset;
port->port.membase = priv->remapped_bar[bar] + offset;
port->port.membase = pcim_iomap_table(dev)[bar] + offset;
port->port.regshift = regshift;
} else {
port->port.iotype = UPIO_PORT;
@ -3995,12 +3992,6 @@ void pciserial_remove_ports(struct serial_private *priv)
for (i = 0; i < priv->nr; i++)
serial8250_unregister_port(priv->line[i]);
for (i = 0; i < PCI_NUM_BAR_RESOURCES; i++) {
if (priv->remapped_bar[i])
iounmap(priv->remapped_bar[i]);
priv->remapped_bar[i] = NULL;
}
/*
* Find the exit quirks.
*/
@ -4072,7 +4063,7 @@ pciserial_init_one(struct pci_dev *dev, const struct pci_device_id *ent)
board = &pci_boards[ent->driver_data];
rc = pci_enable_device(dev);
rc = pcim_enable_device(dev);
pci_save_state(dev);
if (rc)
return rc;
@ -4091,7 +4082,7 @@ pciserial_init_one(struct pci_dev *dev, const struct pci_device_id *ent)
*/
rc = serial_pci_guess_board(dev, &tmp);
if (rc)
goto disable;
return rc;
} else {
/*
* We matched an explicit entry. If we are able to
@ -4107,16 +4098,11 @@ pciserial_init_one(struct pci_dev *dev, const struct pci_device_id *ent)
}
priv = pciserial_init_ports(dev, board);
if (!IS_ERR(priv)) {
pci_set_drvdata(dev, priv);
return 0;
}
if (IS_ERR(priv))
return PTR_ERR(priv);
rc = PTR_ERR(priv);
disable:
pci_disable_device(dev);
return rc;
pci_set_drvdata(dev, priv);
return 0;
}
static void pciserial_remove_one(struct pci_dev *dev)
@ -4124,8 +4110,6 @@ static void pciserial_remove_one(struct pci_dev *dev)
struct serial_private *priv = pci_get_drvdata(dev);
pciserial_remove_ports(priv);
pci_disable_device(dev);
}
#ifdef CONFIG_PM_SLEEP