[PATCH 33/33] migration: push Error **errp into postcopy_do_resume()

["Daniel P. Berrangé" <berrange@redhat.com>]

This is an incremental step in converting vmstate loading code to report
via Error objects instead of printing directly to the console/monitor.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
 migration/migration.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/migration/migration.c b/migration/migration.c
index 32a61b04bf..135a26349f 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -3163,17 +3163,14 @@ static int postcopy_resume_handshake(MigrationState *s, Error **errp)
     return -1;
 }
 
-/* Return zero if success, or <0 for error */
-static int postcopy_do_resume(MigrationState *s)
+/* Return zero if success, or -1 for error */
+static int postcopy_do_resume(MigrationState *s, Error **errp)
 {
-    Error *local_err = NULL;
-
     /*
      * Call all the resume_prepare() hooks, so that modules can be
      * ready for the migration resume.
      */
-    if (qemu_savevm_state_resume_prepare(s, &local_err) < 0) {
-        error_report_err(local_err);
+    if (qemu_savevm_state_resume_prepare(s, errp) < 0) {
         return -1;
     }
 
@@ -3181,8 +3178,7 @@ static int postcopy_do_resume(MigrationState *s)
      * Last handshake with destination on the resume (destination will
      * switch to postcopy-active afterwards)
      */
-    if (postcopy_resume_handshake(s, &local_err) < 0) {
-        error_report_err(local_err);
+    if (postcopy_resume_handshake(s, errp) < 0) {
         return -1;
     }
 
@@ -3196,6 +3192,7 @@ static int postcopy_do_resume(MigrationState *s)
  */
 static MigThrError postcopy_pause(MigrationState *s)
 {
+    Error *local_err = NULL;
     assert(s->state == MIGRATION_STATUS_POSTCOPY_ACTIVE);
 
     while (true) {
@@ -3235,7 +3232,7 @@ static MigThrError postcopy_pause(MigrationState *s)
             qemu_sem_post(&s->postcopy_pause_rp_sem);
 
             /* Do the resume logic */
-            if (postcopy_do_resume(s) == 0) {
+            if (postcopy_do_resume(s, &local_err) == 0) {
                 /* Let's continue! */
                 trace_postcopy_pause_continued();
                 return MIG_THR_ERR_RECOVERED;
@@ -3245,6 +3242,7 @@ static MigThrError postcopy_pause(MigrationState *s)
                  * pause again. Pause is always better than throwing
                  * data away.
                  */
+                error_report_err(local_err);
                 continue;
             }
         } else {
-- 
2.29.2