tree fc56885eae8c483aa33cad8abc4d7fe8e1c94703
parent ebf838c7a160484e99b9e43203359815cde45809
author Hans de Goede <hdegoede@redhat.com> 1542791995 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1545397899 +0100

i2c: scmi: Fix probe error on devices with an empty SMB0001 ACPI device node

[ Upstream commit 0544ee4b1ad574aec3b6379af5f5cdee42840971 ]

Some AMD based HP laptops have a SMB0001 ACPI device node which does not
define any methods.

This leads to the following error in dmesg:

[    5.222731] cmi: probe of SMB0001:00 failed with error -5

This commit makes acpi_smbus_cmi_add() return -ENODEV instead in this case
silencing the error. In case of a failure of the i2c_add_adapter() call
this commit now propagates the error from that call instead of -EIO.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>