um: Clean-up command processing in UML UBD driver

Clean-up command processing and return BLK_STS_NOTSUP for
uknown commands.

Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Anton Ivanov 2018-11-14 18:41:07 +00:00 • committed by Richard Weinberger
commit 53766defb8