gpio: rdc321x: Convert PCIBIOS_* return codes to errnos

rdc_gpio_config() uses pci_{read,write}_config_dword() that return
PCIBIOS_* codes. rdc_gpio_config() is used for
direction_{input,output}() in the struct gpio_chip which both require
normal errnos to be returned.

Similarly, rdc321x_gpio_probe() that is probe function returns
PCIBIOS_* codes without converting them first into normal errnos.

Convert PCIBIOS_* returns code using pcibios_err_to_errno() into normal
errno before returning them to fix both issues.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240527132345.13956-2-ilpo.jarvinen@linux.intel.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

diff --git a/drivers/gpio/gpio-rdc321x.c b/drivers/gpio/gpio-rdc321x.c
index 01ed2517e9fd1a7b2aa899abd7916ac15b67c8bd..ec7fb9220a4747fad5dfdb88e25e68d2a104e37a 100644 (file)
--- a/drivers/gpio/gpio-rdc321x.c
+++ b/drivers/gpio/gpio-rdc321x.c
@@ -102,7 +102,7 @@ static int rdc_gpio_config(struct gpio_chip *chip,
 unlock:
        spin_unlock(&gpch->lock);
 
-       return err;
+       return pcibios_err_to_errno(err);
 }
 
 /* configure GPIO pin as input */
@@ -170,13 +170,13 @@ static int rdc321x_gpio_probe(struct platform_device *pdev)
                                        rdc321x_gpio_dev->reg1_data_base,
                                        &rdc321x_gpio_dev->data_reg[0]);
        if (err)
-               return err;
+               return pcibios_err_to_errno(err);
 
        err = pci_read_config_dword(rdc321x_gpio_dev->sb_pdev,
                                        rdc321x_gpio_dev->reg2_data_base,
                                        &rdc321x_gpio_dev->data_reg[1]);
        if (err)
-               return err;
+               return pcibios_err_to_errno(err);
 
        dev_info(&pdev->dev, "registering %d GPIOs\n",
                                        rdc321x_gpio_dev->chip.ngpio);