From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
To: qemu-devel@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>,
Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>,
armbru@redhat.com, Greg Kurz <groug@kaod.org>
Subject: [PATCH v7 08/11] virtio-9p: introduce ERRP_AUTO_PROPAGATE
Date: Fri, 31 Jan 2020 16:01:15 +0300 [thread overview]
Message-ID: <20200131130118.1716-9-vsementsov@virtuozzo.com> (raw)
In-Reply-To: <20200131130118.1716-1-vsementsov@virtuozzo.com>
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 == &error_fatal
(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 then 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_fatal, this means that we don't break error_abort
(we'll abort on error_set, not on error_propagate)
This commit is generated by command
sed -n '/^virtio-9p$/,/^$/{s/^F: //p}' MAINTAINERS | \
xargs git ls-files | grep '\.[hc]$' | \
xargs spatch \
--sp-file scripts/coccinelle/auto-propagated-errp.cocci \
--macro-file scripts/cocci-macro-file.h \
--in-place --no-show-diff --max-width 80
Reported-by: Kevin Wolf <kwolf@redhat.com>
Reported-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Acked-by: Greg Kurz <groug@kaod.org>
---
hw/9pfs/9p-local.c | 12 +++++-------
hw/9pfs/9p.c | 1 +
2 files changed, 6 insertions(+), 7 deletions(-)
diff --git a/hw/9pfs/9p-local.c b/hw/9pfs/9p-local.c
index 54e012e5b4..0361e0c0b4 100644
--- a/hw/9pfs/9p-local.c
+++ b/hw/9pfs/9p-local.c
@@ -1479,10 +1479,10 @@ static void error_append_security_model_hint(Error *const *errp)
static int local_parse_opts(QemuOpts *opts, FsDriverEntry *fse, Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
const char *sec_model = qemu_opt_get(opts, "security_model");
const char *path = qemu_opt_get(opts, "path");
const char *multidevs = qemu_opt_get(opts, "multidevs");
- Error *local_err = NULL;
if (!sec_model) {
error_setg(errp, "security_model property not set");
@@ -1516,11 +1516,10 @@ static int local_parse_opts(QemuOpts *opts, FsDriverEntry *fse, Error **errp)
fse->export_flags &= ~V9FS_FORBID_MULTIDEVS;
fse->export_flags &= ~V9FS_REMAP_INODES;
} else {
- error_setg(&local_err, "invalid multidevs property '%s'",
+ error_setg(errp, "invalid multidevs property '%s'",
multidevs);
- error_append_hint(&local_err, "Valid options are: multidevs="
+ error_append_hint(errp, "Valid options are: multidevs="
"[remap|forbid|warn]\n");
- error_propagate(errp, local_err);
return -1;
}
}
@@ -1530,9 +1529,8 @@ static int local_parse_opts(QemuOpts *opts, FsDriverEntry *fse, Error **errp)
return -1;
}
- if (fsdev_throttle_parse_opts(opts, &fse->fst, &local_err)) {
- error_propagate_prepend(errp, local_err,
- "invalid throttle configuration: ");
+ if (fsdev_throttle_parse_opts(opts, &fse->fst, errp)) {
+ error_prepend(errp, "invalid throttle configuration: ");
return -1;
}
diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c
index b0e445d6bd..d069618bb8 100644
--- a/hw/9pfs/9p.c
+++ b/hw/9pfs/9p.c
@@ -4002,6 +4002,7 @@ void pdu_submit(V9fsPDU *pdu, P9MsgHeader *hdr)
int v9fs_device_realize_common(V9fsState *s, const V9fsTransport *t,
Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
int i, len;
struct stat stat;
FsDriverEntry *fse;
--
2.21.0
next prev parent reply other threads:[~2020-01-31 13:04 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-31 13:01 [PATCH v7 00/11] error: auto propagated local_err part I Vladimir Sementsov-Ogievskiy
2020-01-31 13:01 ` [PATCH v7 01/11] qapi/error: add (Error **errp) cleaning APIs Vladimir Sementsov-Ogievskiy
2020-02-21 7:38 ` Markus Armbruster
2020-02-21 9:20 ` Vladimir Sementsov-Ogievskiy
2020-02-21 14:25 ` Eric Blake
2020-02-21 16:34 ` Markus Armbruster
2020-02-21 17:31 ` Vladimir Sementsov-Ogievskiy
2020-02-22 8:23 ` Markus Armbruster
2020-02-25 9:48 ` Vladimir Sementsov-Ogievskiy
2020-01-31 13:01 ` [PATCH v7 02/11] error: auto propagated local_err Vladimir Sementsov-Ogievskiy
2020-02-21 9:19 ` Markus Armbruster
2020-02-21 9:42 ` Vladimir Sementsov-Ogievskiy
2020-02-21 14:29 ` Eric Blake
2020-02-21 16:23 ` Markus Armbruster
2020-01-31 13:01 ` [PATCH v7 03/11] scripts: add coccinelle script to use auto propagated errp Vladimir Sementsov-Ogievskiy
2020-02-23 8:55 ` Markus Armbruster
2020-02-25 9:08 ` Vladimir Sementsov-Ogievskiy
2020-02-25 12:52 ` Markus Armbruster
2020-02-25 15:22 ` Vladimir Sementsov-Ogievskiy
2020-02-26 7:41 ` Markus Armbruster
2020-02-25 9:51 ` Vladimir Sementsov-Ogievskiy
2020-03-04 13:40 ` Vladimir Sementsov-Ogievskiy
2020-03-04 15:10 ` Markus Armbruster
2020-01-31 13:01 ` [PATCH v7 04/11] hw/sd/ssi-sd: fix error handling in ssi_sd_realize Vladimir Sementsov-Ogievskiy
2020-01-31 13:01 ` [PATCH v7 05/11] SD (Secure Card): introduce ERRP_AUTO_PROPAGATE Vladimir Sementsov-Ogievskiy
2020-01-31 13:01 ` [PATCH v7 06/11] pflash: " Vladimir Sementsov-Ogievskiy
2020-01-31 13:01 ` [PATCH v7 07/11] fw_cfg: " Vladimir Sementsov-Ogievskiy
2020-01-31 13:01 ` Vladimir Sementsov-Ogievskiy [this message]
2020-01-31 13:01 ` [PATCH v7 09/11] TPM: " Vladimir Sementsov-Ogievskiy
2020-01-31 13:01 ` [PATCH v7 10/11] nbd: " Vladimir Sementsov-Ogievskiy
2020-01-31 13:01 ` [PATCH v7 11/11] xen: " Vladimir Sementsov-Ogievskiy
2020-01-31 13:12 ` [Xen-devel] [PATCH v7 00/11] error: auto propagated local_err part I no-reply
2020-01-31 13:32 ` Vladimir Sementsov-Ogievskiy
2020-03-03 8:01 ` Markus Armbruster
2020-03-03 8:12 ` Vladimir Sementsov-Ogievskiy
2020-03-16 14:40 ` Markus Armbruster
2020-03-17 9:42 ` Vladimir Sementsov-Ogievskiy
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