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qemu-option: Check return value instead of @err where convenient

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Convert uses like

    opts = qemu_opts_create(..., &err);
    if (err) {
        ...
    }

to

    opts = qemu_opts_create(..., errp);
    if (!opts) {
        ...
    }

Eliminate error_propagate() that are now unnecessary.  Delete @err
that are now unused.

Note that we can't drop parallels_open()'s error_propagate() here.  We
continue to execute it even in the converted case.  It's a no-op then:
local_err is null.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200707160613.848843-8-armbru@redhat.com>
This commit is contained in:
Markus Armbruster
2020-07-07 18:05:35 +02:00
parent 79c3e2bc6e
commit c6ecec43b2
5 changed files with 14 additions and 22 deletions
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5
blockdev.c
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@@ -504,9 +504,8 @@ static BlockBackend *blockdev_init(const char *file, QDict *bs_opts,
/* Check common options by copying from bs_opts to opts, all other options
* stay in bs_opts for processing by bdrv_open(). */
id = qdict_get_try_str(bs_opts, "id");
opts = qemu_opts_create(&qemu_common_drive_opts, id, 1, &error);
if (error) {
error_propagate(errp, error);
opts = qemu_opts_create(&qemu_common_drive_opts, id, 1, errp);
if (!opts) {
goto err_no_opts;
}