[PATCH v3 21/25] QOM: Fix error_append_hint usage

[Vladimir Sementsov-Ogievskiy]

If we want append hint to errp, we must use ERRP_FUNCTION_BEGIN macro.
Otherwise hint will not be appended in case of errp == &fatal_err
(program will exit before error_append_hint() call). Fix such cases.

This commit (together with its neighbors) was generated by

git grep -l 'error_append_hint(errp' | while read f; do \
spatch --sp-file scripts/coccinelle/fix-error_append_hint-usage.cocci \
--in-place $f; done

and 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: Greg Kurz <gr...@kaod.org>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com>
---
 qdev-monitor.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/qdev-monitor.c b/qdev-monitor.c
index 148df9cacf..d0129411fb 100644
--- a/qdev-monitor.c
+++ b/qdev-monitor.c
@@ -328,6 +328,7 @@ static Object *qdev_get_peripheral_anon(void)
 
 static void qbus_list_bus(DeviceState *dev, Error **errp)
 {
+    ERRP_FUNCTION_BEGIN();
     BusState *child;
     const char *sep = " ";
 
@@ -342,6 +343,7 @@ static void qbus_list_bus(DeviceState *dev, Error **errp)
 
 static void qbus_list_dev(BusState *bus, Error **errp)
 {
+    ERRP_FUNCTION_BEGIN();
     BusChild *kid;
     const char *sep = " ";
 
-- 
2.21.0