kvm: x86: Fix error handling in the function kvm_lapic_sync_from_vapic
authorNicholas Krause <xerofoify@gmail.com>
Wed, 5 Aug 2015 14:44:40 +0000 (10:44 -0400)
committerPaolo Bonzini <pbonzini@redhat.com>
Tue, 11 Aug 2015 13:11:05 +0000 (15:11 +0200)
commit603242a88ac44771442b077e0c9cb4d3af2b796f
treeb913214c14c5f7f4214c717132606201d4bcc3bb
parentf735d4af4b0ec3d87885710adf18b077480e7b19
kvm: x86: Fix error handling in the function kvm_lapic_sync_from_vapic

This fixes error handling in the function kvm_lapic_sync_from_vapic
by checking if the call to kvm_read_guest_cached has returned a
error code to signal to its caller the call to this function has
failed and due to this we must immediately return to the caller
of kvm_lapic_sync_from_vapic to avoid incorrectly call apic_set_tpc
if a error has occurred here.

Signed-off-by: Nicholas Krause <xerofoify@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/lapic.c