If the adapter does not support I2C_FUNC_SMBUS_WRITE_BYTE,
return -EIO instead of 0.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Acked-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>