Comment # 3 on bug 93236 from Andy Furniss

Seems this is because there is no longer a default as there was in the case
statement.

If I add a couple of printk sitting on the commit before "bad" I hit the
default case during bootup (before I startx).

[    5.030315] ADF: Hit first default, reg_offset = 31
[    5.030406] ADF: Hit second default, reg_offset = 15

diff and full dmesg attached to show timing/position of output.