@@ -163,15 +163,14 @@ static void iothread_init_gcontext(IOThread *iothread)
static void iothread_complete(UserCreatable *obj, Error **errp)
{
- Error *local_error = NULL;
+ ERRP_AUTO_PROPAGATE();
IOThread *iothread = IOTHREAD(obj);
char *name, *thread_name;
iothread->stopping = false;
iothread->running = true;
- iothread->ctx = aio_context_new(&local_error);
+ iothread->ctx = aio_context_new(errp);
if (!iothread->ctx) {
- error_propagate(errp, local_error);
return;
}
@@ -185,9 +184,8 @@ static void iothread_complete(UserCreatable *obj, Error **errp)
iothread->poll_max_ns,
iothread->poll_grow,
iothread->poll_shrink,
- &local_error);
- if (local_error) {
- error_propagate(errp, local_error);
+ errp);
+ if (*errp) {
aio_context_unref(iothread->ctx);
iothread->ctx = NULL;
return;
@@ -237,21 +235,21 @@ static void iothread_get_poll_param(Object *obj, Visitor *v,
static void iothread_set_poll_param(Object *obj, Visitor *v,
const char *name, void *opaque, Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
IOThread *iothread = IOTHREAD(obj);
PollParamInfo *info = opaque;
int64_t *field = (void *)iothread + info->offset;
- Error *local_err = NULL;
int64_t value;
- visit_type_int64(v, name, &value, &local_err);
- if (local_err) {
- goto out;
+ visit_type_int64(v, name, &value, errp);
+ if (*errp) {
+ return;
}
if (value < 0) {
- error_setg(&local_err, "%s value must be in range [0, %"PRId64"]",
+ error_setg(errp, "%s value must be in range [0, %"PRId64"]",
info->name, INT64_MAX);
- goto out;
+ return;
}
*field = value;
@@ -261,11 +259,8 @@ static void iothread_set_poll_param(Object *obj, Visitor *v,
iothread->poll_max_ns,
iothread->poll_grow,
iothread->poll_shrink,
- &local_err);
+ errp);
}
-
-out:
- error_propagate(errp, local_err);
}
static void iothread_class_init(ObjectClass *klass, void *class_data)
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> --- iothread.c | 27 +++++++++++---------------- 1 file changed, 11 insertions(+), 16 deletions(-)