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migration: push Error **errp into vmstate_load_state()

Browse source 
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 vmstate_load_state() must report an error
in errp, in case of failure.

The errors are temporarily reported using error_report_err().
This is removed in the subsequent patches in this series,
when we are actually able to propagate the error to the calling
function using errp. Whereas, if we want the function to exit on
error, then error_fatal is passed.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Arun Menon <armenon@redhat.com>
Tested-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>
Link: https://lore.kernel.org/r/20250918-propagate_tpm_error-v14-2-36f11a6fb9d3@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
This commit is contained in:
Arun Menon 2025-09-18 20:53:19 +05:30 • committed by Peter Xu
parent 73b42fc58d
commit c632ffbd74
15 changed files with 143 additions and 55 deletions
Download patch file Download diff file Expand all files Collapse all files

2
hw/display/virtio-gpu.c
View file

@ -1347,7 +1347,7 @@ static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size,
}
/* load & apply scanout state */
vmstate_load_state(f, &vmstate_virtio_gpu_scanouts, g, 1);
vmstate_load_state(f, &vmstate_virtio_gpu_scanouts, g, 1, &error_fatal);
return 0;
}

3
hw/pci/pci.c
View file

@ -934,7 +934,8 @@ void pci_device_save(PCIDevice *s, QEMUFile *f)
int pci_device_load(PCIDevice *s, QEMUFile *f)
{
int ret;
ret = vmstate_load_state(f, &vmstate_pci_device, s, s->version_id);
ret = vmstate_load_state(f, &vmstate_pci_device, s, s->version_id,
&error_fatal);
/* Restore the interrupt status bit. */
pci_update_irq_status(s);
return ret;

2
hw/s390x/virtio-ccw.c
View file

@ -1136,7 +1136,7 @@ static void virtio_ccw_save_config(DeviceState *d, QEMUFile *f)
static int virtio_ccw_load_config(DeviceState *d, QEMUFile *f)
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
return vmstate_load_state(f, &vmstate_virtio_ccw_dev, dev, 1);
return vmstate_load_state(f, &vmstate_virtio_ccw_dev, dev, 1, &error_fatal);
}
static void virtio_ccw_pre_plugged(DeviceState *d, Error **errp)

4
hw/scsi/spapr_vscsi.c
View file

@ -642,15 +642,17 @@ static void *vscsi_load_request(QEMUFile *f, SCSIRequest *sreq)
VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(bus->qbus.parent);
vscsi_req *req;
int rc;
Error *local_err = NULL;
assert(sreq->tag < VSCSI_REQ_LIMIT);
req = &s->reqs[sreq->tag];
assert(!req->active);
memset(req, 0, sizeof(*req));
rc = vmstate_load_state(f, &vmstate_spapr_vscsi_req, req, 1);
rc = vmstate_load_state(f, &vmstate_spapr_vscsi_req, req, 1, &local_err);
if (rc) {
fprintf(stderr, "VSCSI: failed loading request tag#%u\n", sreq->tag);
error_report_err(local_err);
return NULL;
}
assert(req->active);

5
hw/vfio/pci.c
View file

@ -2831,13 +2831,16 @@ static int vfio_pci_load_config(VFIODevice *vbasedev, QEMUFile *f)
PCIDevice *pdev = PCI_DEVICE(vdev);
pcibus_t old_addr[PCI_NUM_REGIONS - 1];
int bar, ret;
Error *local_err = NULL;
for (bar = 0; bar < PCI_ROM_SLOT; bar++) {
old_addr[bar] = pdev->io_regions[bar].addr;
}
ret = vmstate_load_state(f, &vmstate_vfio_pci_config, vdev, 1);
ret = vmstate_load_state(f, &vmstate_vfio_pci_config, vdev, 1,
&local_err);
if (ret) {
error_report_err(local_err);
return ret;
}

3
hw/virtio/virtio-mmio.c
View file

@ -34,6 +34,7 @@
#include "qemu/error-report.h"
#include "qemu/log.h"
#include "trace.h"
#include "qapi/error.h"
static bool virtio_mmio_ioeventfd_enabled(DeviceState *d)
{
@ -619,7 +620,7 @@ static int virtio_mmio_load_extra_state(DeviceState *opaque, QEMUFile *f)
{
VirtIOMMIOProxy *proxy = VIRTIO_MMIO(opaque);
return vmstate_load_state(f, &vmstate_virtio_mmio, proxy, 1);
return vmstate_load_state(f, &vmstate_virtio_mmio, proxy, 1, &error_fatal);
}
static bool virtio_mmio_has_extra_state(DeviceState *opaque)

2
hw/virtio/virtio-pci.c
View file

@ -161,7 +161,7 @@ static int virtio_pci_load_extra_state(DeviceState *d, QEMUFile *f)
{
VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
return vmstate_load_state(f, &vmstate_virtio_pci, proxy, 1);
return vmstate_load_state(f, &vmstate_virtio_pci, proxy, 1, &error_fatal);
}
static void virtio_pci_save_queue(DeviceState *d, int n, QEMUFile *f)

7
hw/virtio/virtio.c
View file

@ -3235,6 +3235,7 @@ virtio_load(VirtIODevice *vdev, QEMUFile *f, int version_id)
BusState *qbus = qdev_get_parent_bus(DEVICE(vdev));
VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus);
VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev);
Error *local_err = NULL;
/*
* We poison the endianness to ensure it does not get used before
@ -3327,15 +3328,17 @@ virtio_load(VirtIODevice *vdev, QEMUFile *f, int version_id)
}
if (vdc->vmsd) {
ret = vmstate_load_state(f, vdc->vmsd, vdev, version_id);
ret = vmstate_load_state(f, vdc->vmsd, vdev, version_id, &local_err);
if (ret) {
error_report_err(local_err);
return ret;
}
}
/* Subsections */
ret = vmstate_load_state(f, &vmstate_virtio, vdev, 1);
ret = vmstate_load_state(f, &vmstate_virtio, vdev, 1, &local_err);
if (ret) {
error_report_err(local_err);
return ret;
}

2
include/migration/vmstate.h
View file

@ -1196,7 +1196,7 @@ extern const VMStateInfo vmstate_info_qlist;
}
int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd,
void *opaque, int version_id);
void *opaque, int version_id, Error **errp);
int vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd,
void *opaque, JSONWriter *vmdesc);
int vmstate_save_state_with_err(QEMUFile *f, const VMStateDescription *vmsd,

3
migration/cpr.c
View file

@ -234,9 +234,8 @@ int cpr_state_load(MigrationChannel *channel, Error **errp)
return -ENOTSUP;
}
ret = vmstate_load_state(f, &vmstate_cpr_state, &cpr_state, 1);
ret = vmstate_load_state(f, &vmstate_cpr_state, &cpr_state, 1, errp);
if (ret) {
error_setg(errp, "vmstate_load_state error %d", ret);
qemu_fclose(f);
return ret;
}

8
migration/savevm.c
View file

@ -969,7 +969,8 @@ static int vmstate_load(QEMUFile *f, SaveStateEntry *se)
if (!se->vmsd) { /* Old style */
return se->ops->load_state(f, se->opaque, se->load_version_id);
}
return vmstate_load_state(f, se->vmsd, se->opaque, se->load_version_id);
return vmstate_load_state(f, se->vmsd, se->opaque, se->load_version_id,
&error_fatal);
}
static void vmstate_save_old_style(QEMUFile *f, SaveStateEntry *se,
@ -2817,6 +2818,7 @@ static int qemu_loadvm_state_header(QEMUFile *f)
{
unsigned int v;
int ret;
Error *local_err = NULL;
v = qemu_get_be32(f);
if (v != QEMU_VM_FILE_MAGIC) {
@ -2839,9 +2841,11 @@ static int qemu_loadvm_state_header(QEMUFile *f)
error_report("Configuration section missing");
return -EINVAL;
}
ret = vmstate_load_state(f, &vmstate_configuration, &savevm_state, 0);
ret = vmstate_load_state(f, &vmstate_configuration, &savevm_state, 0,
&local_err);
if (ret) {
error_report_err(local_err);
return ret;
}
}

28
migration/vmstate-types.c
View file

@ -19,6 +19,7 @@
#include "qemu/error-report.h"
#include "qemu/queue.h"
#include "trace.h"
#include "qapi/error.h"
/* bool */
@ -543,13 +544,17 @@ static int get_tmp(QEMUFile *f, void *pv, size_t size,
const VMStateField *field)
{
int ret;
Error *local_err = NULL;
const VMStateDescription *vmsd = field->vmsd;
int version_id = field->version_id;
void *tmp = g_malloc(size);
/* Writes the parent field which is at the start of the tmp */
*(void **)tmp = pv;
ret = vmstate_load_state(f, vmsd, tmp, version_id);
ret = vmstate_load_state(f, vmsd, tmp, version_id, &local_err);
if (ret < 0) {
error_report_err(local_err);
}
g_free(tmp);
return ret;
}
@ -626,6 +631,7 @@ static int get_qtailq(QEMUFile *f, void *pv, size_t unused_size,
const VMStateField *field)
{
int ret = 0;
Error *local_err = NULL;
const VMStateDescription *vmsd = field->vmsd;
/* size of a QTAILQ element */
size_t size = field->size;
@ -649,8 +655,9 @@ static int get_qtailq(QEMUFile *f, void *pv, size_t unused_size,
while (qemu_get_byte(f)) {
elm = g_malloc(size);
ret = vmstate_load_state(f, vmsd, elm, version_id);
ret = vmstate_load_state(f, vmsd, elm, version_id, &local_err);
if (ret) {
error_report_err(local_err);
return ret;
}
QTAILQ_RAW_INSERT_TAIL(pv, elm, entry_offset);
@ -772,6 +779,7 @@ static int get_gtree(QEMUFile *f, void *pv, size_t unused_size,
GTree *tree = *pval;
void *key, *val;
int ret = 0;
Error *local_err = NULL;
/* in case of direct key, the key vmsd can be {}, ie. check fields */
if (!direct_key && version_id > key_vmsd->version_id) {
@ -803,18 +811,16 @@ static int get_gtree(QEMUFile *f, void *pv, size_t unused_size,
key = (void *)(uintptr_t)qemu_get_be64(f);
} else {
key = g_malloc0(key_size);
ret = vmstate_load_state(f, key_vmsd, key, version_id);
ret = vmstate_load_state(f, key_vmsd, key, version_id, &local_err);
if (ret) {
error_report("%s : failed to load %s (%d)",
field->name, key_vmsd->name, ret);
error_report_err(local_err);
goto key_error;
}
}
val = g_malloc0(val_size);
ret = vmstate_load_state(f, val_vmsd, val, version_id);
ret = vmstate_load_state(f, val_vmsd, val, version_id, &local_err);
if (ret) {
error_report("%s : failed to load %s (%d)",
field->name, val_vmsd->name, ret);
error_report_err(local_err);
goto val_error;
}
g_tree_insert(tree, key, val);
@ -872,6 +878,7 @@ static int get_qlist(QEMUFile *f, void *pv, size_t unused_size,
const VMStateField *field)
{
int ret = 0;
Error *local_err = NULL;
const VMStateDescription *vmsd = field->vmsd;
/* size of a QLIST element */
size_t size = field->size;
@ -892,10 +899,9 @@ static int get_qlist(QEMUFile *f, void *pv, size_t unused_size,
while (qemu_get_byte(f)) {
elm = g_malloc(size);
ret = vmstate_load_state(f, vmsd, elm, version_id);
ret = vmstate_load_state(f, vmsd, elm, version_id, &local_err);
if (ret) {
error_report("%s: failed to load %s (%d)", field->name,
vmsd->name, ret);
error_report_err(local_err);
g_free(elm);
return ret;
}

61
migration/vmstate.c
View file

@ -132,30 +132,33 @@ static void vmstate_handle_alloc(void *ptr, const VMStateField *field,
}
int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd,
void *opaque, int version_id)
void *opaque, int version_id, Error **errp)
{
const VMStateField *field = vmsd->fields;
int ret = 0;
Error *local_err = NULL;
trace_vmstate_load_state(vmsd->name, version_id);
if (version_id > vmsd->version_id) {
error_report("%s: incoming version_id %d is too new "
"for local version_id %d",
vmsd->name, version_id, vmsd->version_id);
error_setg(errp, "%s: incoming version_id %d is too new "
"for local version_id %d",
vmsd->name, version_id, vmsd->version_id);
trace_vmstate_load_state_end(vmsd->name, "too new", -EINVAL);
return -EINVAL;
}
if (version_id < vmsd->minimum_version_id) {
error_report("%s: incoming version_id %d is too old "
"for local minimum version_id %d",
vmsd->name, version_id, vmsd->minimum_version_id);
error_setg(errp, "%s: incoming version_id %d is too old "
"for local minimum version_id %d",
vmsd->name, version_id, vmsd->minimum_version_id);
trace_vmstate_load_state_end(vmsd->name, "too old", -EINVAL);
return -EINVAL;
}
if (vmsd->pre_load) {
ret = vmsd->pre_load(opaque);
if (ret) {
error_setg(errp, "pre load hook failed for: '%s', "
"version_id: %d, minimum version_id: %d, ret: %d",
vmsd->name, vmsd->version_id, vmsd->minimum_version_id,
ret);
return ret;
}
}
@ -193,13 +196,21 @@ int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd,
if (inner_field->flags & VMS_STRUCT) {
ret = vmstate_load_state(f, inner_field->vmsd, curr_elem,
inner_field->vmsd->version_id);
inner_field->vmsd->version_id,
errp);
} else if (inner_field->flags & VMS_VSTRUCT) {
ret = vmstate_load_state(f, inner_field->vmsd, curr_elem,
inner_field->struct_version_id);
inner_field->struct_version_id,
errp);
} else {
ret = inner_field->info->get(f, curr_elem, size,
inner_field);
if (ret < 0) {
error_setg(errp,
"Failed to load element of type %s for %s: "
"%d", inner_field->info->name,
inner_field->name, ret);
}
}
/* If we used a fake temp field.. free it now */
@ -209,31 +220,40 @@ int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd,
if (ret >= 0) {
ret = qemu_file_get_error(f);
if (ret < 0) {
error_setg(errp,
"Failed to load %s state: stream error: %d",
vmsd->name, ret);
}
}
if (ret < 0) {
qemu_file_set_error(f, ret);
error_report("Failed to load %s:%s", vmsd->name,
field->name);
trace_vmstate_load_field_error(field->name, ret);
return ret;
}
}
} else if (field->flags & VMS_MUST_EXIST) {
error_report("Input validation failed: %s/%s",
vmsd->name, field->name);
error_setg(errp, "Input validation failed: %s/%s version_id: %d",
vmsd->name, field->name, vmsd->version_id);
return -1;
}
field++;
}
assert(field->flags == VMS_END);
ret = vmstate_subsection_load(f, vmsd, opaque, &local_err);
ret = vmstate_subsection_load(f, vmsd, opaque, errp);
if (ret != 0) {
qemu_file_set_error(f, ret);
error_report_err(local_err);
return ret;
}
if (vmsd->post_load) {
ret = vmsd->post_load(opaque, version_id);
if (ret < 0) {
error_setg(errp,
"post load hook failed for: %s, version_id: %d, "
"minimum_version: %d, ret: %d",
vmsd->name, vmsd->version_id, vmsd->minimum_version_id,
ret);
}
}
trace_vmstate_load_state_end(vmsd->name, "end", ret);
return ret;
@ -570,6 +590,7 @@ vmstate_get_subsection(const VMStateDescription * const *sub,
static int vmstate_subsection_load(QEMUFile *f, const VMStateDescription *vmsd,
void *opaque, Error **errp)
{
ERRP_GUARD();
trace_vmstate_subsection_load(vmsd->name);
while (qemu_peek_byte(f, 0) == QEMU_VM_SUBSECTION) {
@ -609,12 +630,12 @@ static int vmstate_subsection_load(QEMUFile *f, const VMStateDescription *vmsd,
qemu_file_skip(f, len); /* idstr */
version_id = qemu_get_be32(f);
ret = vmstate_load_state(f, sub_vmsd, opaque, version_id);
ret = vmstate_load_state(f, sub_vmsd, opaque, version_id, errp);
if (ret) {
trace_vmstate_subsection_load_bad(vmsd->name, idstr, "(child)");
error_setg(errp,
"Loading VM subsection '%s' in '%s' failed: %d",
idstr, vmsd->name, ret);
error_prepend(errp,
"Loading VM subsection '%s' in '%s' failed: %d: ",
idstr, vmsd->name, ret);
return ret;
}
}

63
tests/unit/test-vmstate.c
View file

@ -30,6 +30,7 @@
#include "../migration/savevm.h"
#include "qemu/module.h"
#include "io/channel-file.h"
#include "qapi/error.h"
static int temp_fd;
@ -108,14 +109,16 @@ static int load_vmstate_one(const VMStateDescription *desc, void *obj,
{
QEMUFile *f;
int ret;
Error *local_err = NULL;
f = open_test_file(true);
qemu_put_buffer(f, wire, size);
qemu_fclose(f);
f = open_test_file(false);
ret = vmstate_load_state(f, desc, obj, version);
ret = vmstate_load_state(f, desc, obj, version, &local_err);
if (ret) {
error_report_err(local_err);
g_assert(qemu_file_get_error(f));
} else{
g_assert(!qemu_file_get_error(f));
@ -355,6 +358,8 @@ static const VMStateDescription vmstate_versioned = {
static void test_load_v1(void)
{
Error *local_err = NULL;
int ret;
uint8_t buf[] = {
0, 0, 0, 10, /* a */
0, 0, 0, 30, /* c */
@ -365,7 +370,10 @@ static void test_load_v1(void)
QEMUFile *loading = open_test_file(false);
TestStruct obj = { .b = 200, .e = 500, .f = 600 };
vmstate_load_state(loading, &vmstate_versioned, &obj, 1);
ret = vmstate_load_state(loading, &vmstate_versioned, &obj, 1, &local_err);
if (ret < 0) {
error_report_err(local_err);
}
g_assert(!qemu_file_get_error(loading));
g_assert_cmpint(obj.a, ==, 10);
g_assert_cmpint(obj.b, ==, 200);
@ -378,6 +386,8 @@ static void test_load_v1(void)
static void test_load_v2(void)
{
Error *local_err = NULL;
int ret;
uint8_t buf[] = {
0, 0, 0, 10, /* a */
0, 0, 0, 20, /* b */
@ -391,7 +401,10 @@ static void test_load_v2(void)
QEMUFile *loading = open_test_file(false);
TestStruct obj;
vmstate_load_state(loading, &vmstate_versioned, &obj, 2);
ret = vmstate_load_state(loading, &vmstate_versioned, &obj, 2, &local_err);
if (ret < 0) {
error_report_err(local_err);
}
g_assert_cmpint(obj.a, ==, 10);
g_assert_cmpint(obj.b, ==, 20);
g_assert_cmpint(obj.c, ==, 30);
@ -467,6 +480,8 @@ static void test_save_skip(void)
static void test_load_noskip(void)
{
Error *local_err = NULL;
int ret;
uint8_t buf[] = {
0, 0, 0, 10, /* a */
0, 0, 0, 20, /* b */
@ -480,7 +495,10 @@ static void test_load_noskip(void)
QEMUFile *loading = open_test_file(false);
TestStruct obj = { .skip_c_e = false };
vmstate_load_state(loading, &vmstate_skipping, &obj, 2);
ret = vmstate_load_state(loading, &vmstate_skipping, &obj, 2, &local_err);
if (ret < 0) {
error_report_err(local_err);
}
g_assert(!qemu_file_get_error(loading));
g_assert_cmpint(obj.a, ==, 10);
g_assert_cmpint(obj.b, ==, 20);
@ -493,6 +511,8 @@ static void test_load_noskip(void)
static void test_load_skip(void)
{
Error *local_err = NULL;
int ret;
uint8_t buf[] = {
0, 0, 0, 10, /* a */
0, 0, 0, 20, /* b */
@ -504,7 +524,10 @@ static void test_load_skip(void)
QEMUFile *loading = open_test_file(false);
TestStruct obj = { .skip_c_e = true, .c = 300, .e = 500 };
vmstate_load_state(loading, &vmstate_skipping, &obj, 2);
ret = vmstate_load_state(loading, &vmstate_skipping, &obj, 2, &local_err);
if (ret < 0) {
error_report_err(local_err);
}
g_assert(!qemu_file_get_error(loading));
g_assert_cmpint(obj.a, ==, 10);
g_assert_cmpint(obj.b, ==, 20);
@ -744,6 +767,8 @@ static void test_save_q(void)
static void test_load_q(void)
{
int ret;
Error *local_err = NULL;
TestQtailq obj_q = {
.i16 = -512,
.i32 = 70000,
@ -773,7 +798,10 @@ static void test_load_q(void)
TestQtailq tgt;
QTAILQ_INIT(&tgt.q);
vmstate_load_state(fload, &vmstate_q, &tgt, 1);
ret = vmstate_load_state(fload, &vmstate_q, &tgt, 1, &local_err);
if (ret < 0) {
error_report_err(local_err);
}
char eof = qemu_get_byte(fload);
g_assert(!qemu_file_get_error(fload));
g_assert_cmpint(tgt.i16, ==, obj_q.i16);
@ -1115,6 +1143,8 @@ static void diff_iommu(TestGTreeIOMMU *iommu1, TestGTreeIOMMU *iommu2)
static void test_gtree_load_domain(void)
{
Error *local_err = NULL;
int ret;
TestGTreeDomain *dest_domain = g_new0(TestGTreeDomain, 1);
TestGTreeDomain *orig_domain = create_first_domain();
QEMUFile *fload, *fsave;
@ -1127,7 +1157,11 @@ static void test_gtree_load_domain(void)
fload = open_test_file(false);
vmstate_load_state(fload, &vmstate_domain, dest_domain, 1);
ret = vmstate_load_state(fload, &vmstate_domain, dest_domain, 1,
&local_err);
if (ret < 0) {
error_report_err(local_err);
}
eof = qemu_get_byte(fload);
g_assert(!qemu_file_get_error(fload));
g_assert_cmpint(orig_domain->id, ==, dest_domain->id);
@ -1230,6 +1264,8 @@ static void test_gtree_save_iommu(void)
static void test_gtree_load_iommu(void)
{
Error *local_err = NULL;
int ret;
TestGTreeIOMMU *dest_iommu = g_new0(TestGTreeIOMMU, 1);
TestGTreeIOMMU *orig_iommu = create_iommu();
QEMUFile *fsave, *fload;
@ -1241,7 +1277,10 @@ static void test_gtree_load_iommu(void)
qemu_fclose(fsave);
fload = open_test_file(false);
vmstate_load_state(fload, &vmstate_iommu, dest_iommu, 1);
ret = vmstate_load_state(fload, &vmstate_iommu, dest_iommu, 1, &local_err);
if (ret < 0) {
error_report_err(local_err);
}
eof = qemu_get_byte(fload);
g_assert(!qemu_file_get_error(fload));
g_assert_cmpint(orig_iommu->id, ==, dest_iommu->id);
@ -1363,6 +1402,8 @@ static void test_save_qlist(void)
static void test_load_qlist(void)
{
Error *local_err = NULL;
int ret;
QEMUFile *fsave, *fload;
TestQListContainer *orig_container = alloc_container();
TestQListContainer *dest_container = g_new0(TestQListContainer, 1);
@ -1376,7 +1417,11 @@ static void test_load_qlist(void)
qemu_fclose(fsave);
fload = open_test_file(false);
vmstate_load_state(fload, &vmstate_container, dest_container, 1);
ret = vmstate_load_state(fload, &vmstate_container, dest_container, 1,
&local_err);
if (ret < 0) {
error_report_err(local_err);
}
eof = qemu_get_byte(fload);
g_assert(!qemu_file_get_error(fload));
g_assert_cmpint(eof, ==, QEMU_VM_EOF);

5
ui/vdagent.c
View file

@ -1001,6 +1001,7 @@ static int get_cbinfo(QEMUFile *f, void *pv, size_t size,
VDAgentChardev *vd = QEMU_VDAGENT_CHARDEV(pv);
struct CBInfoArray cbinfo = {};
int i, ret;
Error *local_err = NULL;
if (!have_clipboard(vd)) {
return 0;
@ -1008,8 +1009,10 @@ static int get_cbinfo(QEMUFile *f, void *pv, size_t size,
vdagent_clipboard_peer_register(vd);
ret = vmstate_load_state(f, &vmstate_cbinfo_array, &cbinfo, 0);
ret = vmstate_load_state(f, &vmstate_cbinfo_array, &cbinfo, 0,
&local_err);
if (ret) {
error_report_err(local_err);
return ret;
}