powerpc/kvm: Fix kvm_use_magic_page
authorAndreas Gruenbacher <agruenba@redhat.com>
Mon, 2 Aug 2021 11:46:19 +0000 (13:46 +0200)
committerAndreas Gruenbacher <agruenba@redhat.com>
Mon, 18 Oct 2021 14:31:45 +0000 (16:31 +0200)
commit0c8eb2884a42d992c7726539328b7d3568f22143
tree8bbeb387b5d3c11f08f36a29eb4ec47ff87a29f0
parent814a66741b9ffb5e1ba119e368b178edb0b7322d
powerpc/kvm: Fix kvm_use_magic_page

When switching from __get_user to fault_in_pages_readable, commit
9f9eae5ce717 broke kvm_use_magic_page: like __get_user,
fault_in_pages_readable returns 0 on success.

Fixes: 9f9eae5ce717 ("powerpc/kvm: Prefer fault_in_pages_readable function")
Cc: stable@vger.kernel.org # v4.18+
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
arch/powerpc/kernel/kvm.c