[PATCH v2 5/5] qemu: Don't give up on first error in qemuMigrationCancelDriverMirror

[Jiri Denemark <jdenemar@xxxxxxxxxx>]

When cancelling drive mirror, always try to do that for all disks even
if it fails for some of them. Report the first error we saw.

Signed-off-by: Jiri Denemark <jdenemar@xxxxxxxxxx>
---

Notes:
    Version 2:
    - rebased (context changed)

 src/qemu/qemu_migration.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index c4f1c48..d12b7cc 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -1862,6 +1862,8 @@ static int
 qemuMigrationCancelDriveMirror(virQEMUDriverPtr driver,
                                virDomainObjPtr vm)
 {
+    virErrorPtr err = NULL;
+    int ret = 0;
     size_t i;
 
     for (i = 0; i < vm->def->ndisks; i++) {
@@ -1871,13 +1873,20 @@ qemuMigrationCancelDriveMirror(virQEMUDriverPtr driver,
         if (!diskPriv->migrating || !diskPriv->blockJobSync)
             continue;
 
-        if (qemuMigrationCancelOneDriveMirror(driver, vm, disk) < 0)
-            return -1;
+        if (qemuMigrationCancelOneDriveMirror(driver, vm, disk) < 0) {
+            ret = -1;
+            if (!err)
+                err = virSaveLastError();
+        }
 
         diskPriv->migrating = false;
     }
 
-    return 0;
+    if (err) {
+        virSetError(err);
+        virFreeError(err);
+    }
+    return ret;
 }
 
 
-- 
2.4.0

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