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gpio-exar/8250-exar: Fix passing in of parent PCI device 

This fixes reloading of the GPIO driver for the same platform device
instance as created by the exar UART driver: First of all, the driver
sets drvdata to its own value during probing and does not restore the
original value on exit. But this won't help anyway as the core clears
drvdata after the driver left.

Set the platform device parent instead.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Jan Kiszka 2017-06-09 20:33:10 +02:00 committed by Linus Walleij
parent f6ac438e5e
commit d3936d7437
2 changed files with 3 additions and 2 deletions
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2
drivers/gpio/gpio-exar.c
View File

@ -119,7 +119,7 @@ static int exar_direction_input(struct gpio_chip *chip, unsigned int offset)
static int gpio_exar_probe(struct platform_device *pdev)
{
struct pci_dev *pcidev = platform_get_drvdata(pdev);
struct pci_dev *pcidev = to_pci_dev(pdev->dev.parent);
struct exar_gpio_chip *exar_gpio;
void __iomem *p;
int index, ret;

3
drivers/tty/serial/8250/8250_exar.c
View File

@ -196,7 +196,8 @@ xr17v35x_register_gpio(struct pci_dev *pcidev)
if (!pdev)
return NULL;
platform_set_drvdata(pdev, pcidev);
pdev->dev.parent = &pcidev->dev;
if (platform_device_add(pdev) < 0) {
platform_device_put(pdev);
return NULL;