If we want to add some info to errp (by error_prepend() or
error_append_hint()), we must use the ERRP_AUTO_PROPAGATE macro.
Otherwise, this info will not be added when errp == &fatal_err
(the program will exit prior to the error_append_hint() or
error_prepend() call). Fix such cases.
If we want to check error after errp-function call, we need to
introduce local_err and than propagate it to errp. Instead, use
ERRP_AUTO_PROPAGATE macro, benefits are:
1. No need of explicit error_propagate call
2. No need of explicit local_err variable: use errp directly
3. ERRP_AUTO_PROPAGATE leaves errp as is if it's not NULL or
&error_fatel, this means that we don't break error_abort
(we'll abort on error_set, not on error_propagate)
This commit (together with its neighbors) was generated by
for f in $(git grep -l errp \*.[ch]); do \
spatch --sp-file scripts/coccinelle/auto-propagated-errp.cocci \
--macro-file scripts/cocci-macro-file.h --in-place --no-show-diff $f; \
done;
then fix a bit of compilation problems: coccinelle for some reason
leaves several
f() {
...
goto out;
...
out:
}
patterns, with "out:" at function end.
then
./python/commit-per-subsystem.py MAINTAINERS "$(< auto-msg)"
(auto-msg was a file with this commit message)
Still, for backporting it may be more comfortable to use only the first
command and then do one huge commit.
Reported-by: Kevin Wolf <kw...@redhat.com>
Reported-by: Greg Kurz <gr...@kaod.org>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com>
---
hw/s390x/virtio-ccw-crypto.c | 7 +++----
hw/s390x/virtio-ccw-rng.c | 7 +++----
hw/s390x/virtio-ccw.c | 13 ++++++-------
3 files changed, 12 insertions(+), 15 deletions(-)
diff --git a/hw/s390x/virtio-ccw-crypto.c b/hw/s390x/virtio-ccw-crypto.c
index 086b397ad2..b942179f3f 100644
--- a/hw/s390x/virtio-ccw-crypto.c
+++ b/hw/s390x/virtio-ccw-crypto.c
@@ -17,14 +17,13 @@
static void virtio_ccw_crypto_realize(VirtioCcwDevice *ccw_dev, Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(ccw_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
- Error *err = NULL;
qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
- object_property_set_bool(OBJECT(vdev), true, "realized", &err);
- if (err) {
- error_propagate(errp, err);
+ object_property_set_bool(OBJECT(vdev), true, "realized", errp);
+ if (*errp) {
return;
}
diff --git a/hw/s390x/virtio-ccw-rng.c b/hw/s390x/virtio-ccw-rng.c
index 854254dd50..bc242f1fc6 100644
--- a/hw/s390x/virtio-ccw-rng.c
+++ b/hw/s390x/virtio-ccw-rng.c
@@ -18,14 +18,13 @@
static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
VirtIORNGCcw *dev = VIRTIO_RNG_CCW(ccw_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
- Error *err = NULL;
qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
- object_property_set_bool(OBJECT(vdev), true, "realized", &err);
- if (err) {
- error_propagate(errp, err);
+ object_property_set_bool(OBJECT(vdev), true, "realized", errp);
+ if (*errp) {
return;
}
diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c
index 6580ce5907..3d80b27ef5 100644
--- a/hw/s390x/virtio-ccw.c
+++ b/hw/s390x/virtio-ccw.c
@@ -692,18 +692,18 @@ static void virtio_sch_disable_cb(SubchDev *sch)
static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_GET_CLASS(dev);
CcwDevice *ccw_dev = CCW_DEVICE(dev);
CCWDeviceClass *ck = CCW_DEVICE_GET_CLASS(ccw_dev);
SubchDev *sch;
- Error *err = NULL;
sch = css_create_sch(ccw_dev->devno, errp);
if (!sch) {
return;
}
if (!virtio_ccw_rev_max(dev) && dev->force_revision_1) {
- error_setg(&err, "Invalid value of property max_rev "
+ error_setg(errp, "Invalid value of property max_rev "
"(is %d expected >= 1)", virtio_ccw_rev_max(dev));
goto out_err;
}
@@ -728,21 +728,20 @@ static void virtio_ccw_device_realize(VirtioCcwDevice
*dev, Error **errp)
}
if (k->realize) {
- k->realize(dev, &err);
- if (err) {
+ k->realize(dev, errp);
+ if (*errp) {
goto out_err;
}
}
- ck->realize(ccw_dev, &err);
- if (err) {
+ ck->realize(ccw_dev, errp);
+ if (*errp) {
goto out_err;
}
return;
out_err:
- error_propagate(errp, err);
css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL);
ccw_dev->sch = NULL;
g_free(sch);
--
2.21.0
