@@ -44,29 +44,27 @@ static void nvdimm_get_label_size(Object *obj, Visitor *v, const char *name,
static void nvdimm_set_label_size(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
NVDIMMDevice *nvdimm = NVDIMM(obj);
- Error *local_err = NULL;
uint64_t value;
if (nvdimm->nvdimm_mr) {
- error_setg(&local_err, "cannot change property value");
- goto out;
+ error_setg(errp, "cannot change property value");
+ return;
}
- visit_type_size(v, name, &value, &local_err);
- if (local_err) {
- goto out;
+ visit_type_size(v, name, &value, errp);
+ if (*errp) {
+ return;
}
if (value < MIN_NAMESPACE_LABEL_SIZE) {
- error_setg(&local_err, "Property '%s.%s' (0x%" PRIx64 ") is required"
+ error_setg(errp, "Property '%s.%s' (0x%" PRIx64 ") is required"
" at least 0x%lx", object_get_typename(obj),
name, value, MIN_NAMESPACE_LABEL_SIZE);
- goto out;
+ return;
}
nvdimm->label_size = value;
-out:
- error_propagate(errp, local_err);
}
static void nvdimm_init(Object *obj)
@@ -126,13 +124,12 @@ static void nvdimm_prepare_memory_region(NVDIMMDevice *nvdimm, Error **errp)
static MemoryRegion *nvdimm_md_get_memory_region(MemoryDeviceState *md,
Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
NVDIMMDevice *nvdimm = NVDIMM(md);
- Error *local_err = NULL;
if (!nvdimm->nvdimm_mr) {
- nvdimm_prepare_memory_region(nvdimm, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
+ nvdimm_prepare_memory_region(nvdimm, errp);
+ if (*errp) {
return NULL;
}
}
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 <kwolf@redhat.com> Reported-by: Greg Kurz <groug@kaod.org> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> --- hw/mem/nvdimm.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-)