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[RFC v5 039/126] IDE: introduce ERRP_AUTO_PROPAGATE
From: |
Vladimir Sementsov-Ogievskiy |
Subject: |
[RFC v5 039/126] IDE: introduce ERRP_AUTO_PROPAGATE |
Date: |
Fri, 11 Oct 2019 19:04:25 +0300 |
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 <address@hidden>
Reported-by: Greg Kurz <address@hidden>
Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
---
hw/ide/qdev.c | 16 +++++++---------
1 file changed, 7 insertions(+), 9 deletions(-)
diff --git a/hw/ide/qdev.c b/hw/ide/qdev.c
index 6fba6b62b8..9e5ed9914f 100644
--- a/hw/ide/qdev.c
+++ b/hw/ide/qdev.c
@@ -233,18 +233,18 @@ static void ide_dev_get_bootindex(Object *obj, Visitor
*v, const char *name,
static void ide_dev_set_bootindex(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
IDEDevice *d = IDE_DEVICE(obj);
int32_t boot_index;
- Error *local_err = NULL;
- visit_type_int32(v, name, &boot_index, &local_err);
- if (local_err) {
- goto out;
+ visit_type_int32(v, name, &boot_index, errp);
+ if (*errp) {
+ return;
}
/* check whether bootindex is present in fw_boot_order list */
- check_boot_index(boot_index, &local_err);
- if (local_err) {
- goto out;
+ check_boot_index(boot_index, errp);
+ if (*errp) {
+ return;
}
/* change bootindex to a new one */
d->conf.bootindex = boot_index;
@@ -253,8 +253,6 @@ static void ide_dev_set_bootindex(Object *obj, Visitor *v,
const char *name,
add_boot_device_path(d->conf.bootindex, &d->qdev,
d->unit ? "/disk@1" : "/disk@0");
}
-out:
- error_propagate(errp, local_err);
}
static void ide_dev_instance_init(Object *obj)
--
2.21.0
- [RFC v5 000/126] error: auto propagated local_err, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 007/126] nbd: well form nbd_iter_channel_error errp handler, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 011/126] block/snapshot: rename Error ** parameter to more common errp, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 019/126] include/block/snapshot.h: rename Error ** parameter to more common errp, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 040/126] Floppy: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 039/126] IDE: introduce ERRP_AUTO_PROPAGATE,
Vladimir Sementsov-Ogievskiy <=
- [RFC v5 045/126] pflash: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 055/126] virtio-blk: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 068/126] scsi: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 092/126] Record/replay: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 031/126] xen: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 096/126] VHDX: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 094/126] RBD: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 052/126] vhost: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 060/126] megasas: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11