[PATCH v7 06/24] migration: push Error **errp into qemu_loadvm_section_part_end()

[Arun Menon <armenon@redhat.com>]

This is an incremental step in converting vmstate loading
code to report error via Error objects instead of directly
printing it to console/monitor.
It is ensured that qemu_loadvm_section_part_end() must report an error
in errp, in case of failure.

Signed-off-by: Arun Menon <armenon@redhat.com>
---
 migration/savevm.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/migration/savevm.c b/migration/savevm.c
index 29d2947eed79432f7bd9224743549aad87d177b9..21899e6beee3d2661c9a694379039e82cefbee4f 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -2771,7 +2771,7 @@ qemu_loadvm_section_start_full(QEMUFile *f, uint8_t type, Error **errp)
 }
 
 static int
-qemu_loadvm_section_part_end(QEMUFile *f, uint8_t type)
+qemu_loadvm_section_part_end(QEMUFile *f, uint8_t type, Error **errp)
 {
     bool trace_downtime = (type == QEMU_VM_SECTION_END);
     int64_t start_ts, end_ts;
@@ -2783,8 +2783,7 @@ qemu_loadvm_section_part_end(QEMUFile *f, uint8_t type)
 
     ret = qemu_file_get_error(f);
     if (ret) {
-        error_report("%s: Failed to read section ID: %d",
-                     __func__, ret);
+        error_setg(errp, "Failed to read section ID: %d", ret);
         return ret;
     }
 
@@ -2795,7 +2794,7 @@ qemu_loadvm_section_part_end(QEMUFile *f, uint8_t type)
         }
     }
     if (se == NULL) {
-        error_report("Unknown savevm section %d", section_id);
+        error_setg(errp, "Unknown savevm section %d", section_id);
         return -EINVAL;
     }
 
@@ -2803,10 +2802,10 @@ qemu_loadvm_section_part_end(QEMUFile *f, uint8_t type)
         start_ts = qemu_clock_get_us(QEMU_CLOCK_REALTIME);
     }
 
-    ret = vmstate_load(f, se, NULL);
+    ret = vmstate_load(f, se, errp);
     if (ret < 0) {
-        error_report("error while loading state section id %d(%s)",
-                     section_id, se->idstr);
+        error_prepend(errp, "error while loading state section id %d(%s): ",
+                      section_id, se->idstr);
         return ret;
     }
 
@@ -2817,6 +2816,8 @@ qemu_loadvm_section_part_end(QEMUFile *f, uint8_t type)
     }
 
     if (!check_section_footer(f, se)) {
+        error_setg(errp, "Check section footer error, section_id: '%d'",
+                   section_id);
         return -EINVAL;
     }
 
@@ -3073,7 +3074,7 @@ retry:
             break;
         case QEMU_VM_SECTION_PART:
         case QEMU_VM_SECTION_END:
-            ret = qemu_loadvm_section_part_end(f, section_type);
+            ret = qemu_loadvm_section_part_end(f, section_type, NULL);
             if (ret < 0) {
                 goto out;
             }

-- 
2.50.0