[Qemu-devel] [PATCH v2 10/17] savevm: add error parameter to qemu_savevm_state_complete()

[Pavel Hrdina <phrdina@redhat.com>]

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
---
 migration.c |  2 +-
 savevm.c    | 13 ++++++++++---
 sysemu.h    |  3 ++-
 3 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/migration.c b/migration.c
index bbc0cac..3ae1db0 100644
--- a/migration.c
+++ b/migration.c
@@ -353,7 +353,7 @@ void migrate_fd_put_ready(MigrationState *s)
         qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER);
         vm_stop_force_state(RUN_STATE_FINISH_MIGRATE);
 
-        if (qemu_savevm_state_complete(s->file) < 0) {
+        if (qemu_savevm_state_complete(s->file, NULL) < 0) {
             migrate_fd_error(s);
         } else {
             migrate_fd_completed(s);
diff --git a/savevm.c b/savevm.c
index 26f12e1..c17cc7f 100644
--- a/savevm.c
+++ b/savevm.c
@@ -1713,7 +1713,8 @@ int qemu_savevm_state_iterate(QEMUFile *f,
     return ret;
 }
 
-int qemu_savevm_state_complete(QEMUFile *f)
+int qemu_savevm_state_complete(QEMUFile *f,
+                               Error **errp)
 {
     SaveStateEntry *se;
     int ret;
@@ -1737,6 +1738,7 @@ int qemu_savevm_state_complete(QEMUFile *f)
         ret = se->ops->save_live_complete(f, se->opaque);
         trace_savevm_section_end(se->section_id);
         if (ret < 0) {
+            error_setg(errp, "Failed to complete vmstate save.");
             return ret;
         }
     }
@@ -1766,7 +1768,12 @@ int qemu_savevm_state_complete(QEMUFile *f)
 
     qemu_put_byte(f, QEMU_VM_EOF);
 
-    return qemu_file_get_error(f);
+    ret = qemu_file_get_error(f);
+    if (ret < 0) {
+        error_setg(errp, "%s", strerror(errno));
+    }
+
+    return ret;
 }
 
 void qemu_savevm_state_cancel(QEMUFile *f)
@@ -1803,7 +1810,7 @@ static int qemu_savevm_state(QEMUFile *f)
             goto out;
     } while (ret == 0);
 
-    ret = qemu_savevm_state_complete(f);
+    ret = qemu_savevm_state_complete(f, NULL);
 
 out:
     if (ret == 0) {
diff --git a/sysemu.h b/sysemu.h
index d0530b2..11a4560 100644
--- a/sysemu.h
+++ b/sysemu.h
@@ -78,7 +78,8 @@ int qemu_savevm_state_begin(QEMUFile *f,
                             Error **errp);
 int qemu_savevm_state_iterate(QEMUFile *f,
                               Error **errp);
-int qemu_savevm_state_complete(QEMUFile *f);
+int qemu_savevm_state_complete(QEMUFile *f,
+                               Error **errp);
 void qemu_savevm_state_cancel(QEMUFile *f);
 int qemu_loadvm_state(QEMUFile *f);
 
-- 
1.8.0.2