Merge remote-tracking branch 'remotes/dgilbert/tags/pull-migration-20170927a' into staging

Migration pull 2017-09-27

# gpg: Signature made Wed 27 Sep 2017 14:56:23 BST
# gpg:                using RSA key 0x0516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A  9FA9 0516 331E BC5B FDE7

* remotes/dgilbert/tags/pull-migration-20170927a:
  migration: Route more error paths
  migration: Route errors up through vmstate_save
  migration: wire vmstate_save_state errors up to vmstate_subsection_save
  migration: Check field save returns
  migration: check pre_save return in vmstate_save_state
  migration: pre_save return int
  migration: disable auto-converge during bulk block migration

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/hw/intc/s390_flic_kvm.c b/hw/intc/s390_flic_kvm.c
index 7ead17ac3e..d208cb81c4 100644
--- a/hw/intc/s390_flic_kvm.c
+++ b/hw/intc/s390_flic_kvm.c
@@ -420,7 +420,7 @@ typedef struct KVMS390FLICStateMigTmp {
     uint8_t nimm;
 } KVMS390FLICStateMigTmp;
 
-static void kvm_flic_ais_pre_save(void *opaque)
+static int kvm_flic_ais_pre_save(void *opaque)
 {
     KVMS390FLICStateMigTmp *tmp = opaque;
     KVMS390FLICState *flic = tmp->parent;
@@ -433,11 +433,13 @@ static void kvm_flic_ais_pre_save(void *opaque)
 
     if (ioctl(flic->fd, KVM_GET_DEVICE_ATTR, &attr)) {
         error_report("Failed to retrieve kvm flic ais states");
-        return;
+        return -EINVAL;
     }
 
     tmp->simm = ais.simm;
     tmp->nimm = ais.nimm;
+
+    return 0;
 }
 
 static int kvm_flic_ais_post_load(void *opaque, int version_id)