Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
---
 include/migration/cpr.h |  4 ++--
 migration/cpr.c         | 32 ++++++++++++++------------------
 migration/migration.c   |  2 +-
 3 files changed, 17 insertions(+), 21 deletions(-)

diff --git a/include/migration/cpr.h b/include/migration/cpr.h
index a412d6663c..f930fdb5b0 100644
--- a/include/migration/cpr.h
+++ b/include/migration/cpr.h
@@ -41,8 +41,8 @@ MigMode cpr_get_incoming_mode(void);
 void cpr_set_incoming_mode(MigMode mode);
 bool cpr_is_incoming(void);
 
-int cpr_state_save(MigrationChannel *channel, Error **errp);
-int cpr_state_load(MigrationChannel *channel, Error **errp);
+bool cpr_state_save(MigrationChannel *channel, Error **errp);
+bool cpr_state_load(MigrationChannel *channel, Error **errp);
 void cpr_state_close(void);
 struct QIOChannel *cpr_state_ioc(void);
 
diff --git a/migration/cpr.c b/migration/cpr.c
index 22dbac7c72..b8d6c0cead 100644
--- a/migration/cpr.c
+++ b/migration/cpr.c
@@ -176,9 +176,8 @@ bool cpr_is_incoming(void)
     return incoming_mode != MIG_MODE_NONE;
 }
 
-int cpr_state_save(MigrationChannel *channel, Error **errp)
+bool cpr_state_save(MigrationChannel *channel, Error **errp)
 {
-    int ret;
     QEMUFile *f;
     MigMode mode = migrate_mode();
 
@@ -190,19 +189,18 @@ int cpr_state_save(MigrationChannel *channel, Error **errp)
     } else if (mode == MIG_MODE_CPR_EXEC) {
         f = cpr_exec_output(errp);
     } else {
-        return 0;
+        return true;
     }
     if (!f) {
-        return -1;
+        return false;
     }
 
     qemu_put_be32(f, QEMU_CPR_FILE_MAGIC);
     qemu_put_be32(f, QEMU_CPR_FILE_VERSION);
 
-    ret = vmstate_save_state(f, &vmstate_cpr_state, &cpr_state, 0, errp);
-    if (ret) {
+    if (!vmstate_save_vmsd(f, &vmstate_cpr_state, &cpr_state, 0, errp)) {
         qemu_fclose(f);
-        return ret;
+        return false;
     }
 
     if (migrate_mode() == MIG_MODE_CPR_EXEC) {
@@ -217,12 +215,11 @@ int cpr_state_save(MigrationChannel *channel, Error **errp)
     qio_channel_shutdown(qemu_file_get_ioc(f), QIO_CHANNEL_SHUTDOWN_WRITE,
                          NULL);
     cpr_state_file = f;
-    return 0;
+    return true;
 }
 
-int cpr_state_load(MigrationChannel *channel, Error **errp)
+bool cpr_state_load(MigrationChannel *channel, Error **errp)
 {
-    int ret;
     uint32_t v;
     QEMUFile *f;
     MigMode mode = 0;
@@ -238,10 +235,10 @@ int cpr_state_load(MigrationChannel *channel, Error **errp)
         cpr_set_incoming_mode(mode);
         f = cpr_transfer_input(channel, errp);
     } else {
-        return 0;
+        return true;
     }
     if (!f) {
-        return -1;
+        return false;
     }
 
     trace_cpr_state_load(MigMode_str(mode));
@@ -251,19 +248,18 @@ int cpr_state_load(MigrationChannel *channel, Error **errp)
     if (v != QEMU_CPR_FILE_MAGIC) {
         error_setg(errp, "Not a migration stream (bad magic %x)", v);
         qemu_fclose(f);
-        return -EINVAL;
+        return false;
     }
     v = qemu_get_be32(f);
     if (v != QEMU_CPR_FILE_VERSION) {
         error_setg(errp, "Unsupported migration stream version %d", v);
         qemu_fclose(f);
-        return -ENOTSUP;
+        return false;
     }
 
-    ret = vmstate_load_state(f, &vmstate_cpr_state, &cpr_state, 1, errp);
-    if (ret) {
+    if (!vmstate_load_vmsd(f, &vmstate_cpr_state, &cpr_state, 1, errp)) {
         qemu_fclose(f);
-        return ret;
+        return false;
     }
 
     if (migrate_mode() == MIG_MODE_CPR_EXEC) {
@@ -277,7 +273,7 @@ int cpr_state_load(MigrationChannel *channel, Error **errp)
      */
     cpr_state_file = f;
 
-    return ret;
+    return true;
 }
 
 void cpr_state_close(void)
diff --git a/migration/migration.c b/migration/migration.c
index a63b46bbef..c8a5712993 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -2301,7 +2301,7 @@ void qmp_migrate(const char *uri, bool has_channels,
         return;
     }
 
-    if (cpr_state_save(cpr_channel, &local_err)) {
+    if (!cpr_state_save(cpr_channel, &local_err)) {
         goto out;
     }
 
-- 
2.48.1