tree 57372178e22cdbc15469a4a8a58f8e5f180a0478
parent 5f008fce1f275c851f62a3bf2238d5f4fc27d4dc
author Janosch Frank <frankja@linux.ibm.com> 1538470672 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1542136609 -0800

s390/sthyi: Fix machine name validity indication

[ Upstream commit b5130dc2224d1881f24224c0590c6d97f2168d6a ]

When running as a level 3 guest with no host provided sthyi support
sclp_ocf_cpc_name_copy() will only return zeroes. Zeroes are not a
valid group name, so let's not indicate that the group name field is
valid.

Also the group name is not dependent on stsi, let's not return based
on stsi before setting it.

Fixes: 95ca2cb57985 ("KVM: s390: Add sthyi emulation")
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>