gpio: amd8111: Convert PCIBIOS_* return codes to errnos

amd_gpio_init() uses pci_read_config_dword() that returns PCIBIOS_*
codes. The return code is then returned as is but amd_gpio_init() is
a module init function that should return normal errnos.

Convert PCIBIOS_* returns code using pcibios_err_to_errno() into normal
errno before returning it from amd_gpio_init().

Signed-off-by: Ilpo Järvinen <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Bartosz Golaszewski <[e-mail]>

drivers/gpio/gpio-amd8111.c

···
 
 found:
 	err = pci_read_config_dword(pdev, 0x58, &gp.pmbase);
-	if (err)
+	if (err) {
+		err = pcibios_err_to_errno(err);
 		goto out;
+	}
 	err = -EIO;
 	gp.pmbase &= 0x0000FF00;
 	if (gp.pmbase == 0)