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authorMarkus Armbruster <armbru@redhat.com>2016-04-27 16:29:09 +0200
committerMarkus Armbruster <armbru@redhat.com>2016-04-28 08:19:36 +0200
commit51b9b478cc238ad23a78ffd713f9c18bbc3907e6 (patch)
treedac1b1a7ec5c83135cd8524014e4aa528291373a /qom
parentd9d3aaea0b3fbb5028e20316bdb93359487cd01f (diff)
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qom: -object error messages lost location, restore it
qemu_opts_foreach() runs its callback with the error location set to the option's location. Any errors the callback reports use the option's location automatically. Commit 90998d5 moved the actual error reporting from "inside" qemu_opts_foreach() to after it. Here's a typical hunk: if (qemu_opts_foreach(qemu_find_opts("object"), - object_create, - object_create_initial, NULL)) { + user_creatable_add_opts_foreach, + object_create_initial, &err)) { + error_report_err(err); exit(1); } Before, object_create() reports from within qemu_opts_foreach(), using the option's location. Afterwards, we do it after qemu_opts_foreach(), using whatever location happens to be current there. Commonly a "none" location. This is because Error objects don't have location information. Problematic. Reproducer: $ qemu-system-x86_64 -nodefaults -display none -object secret,id=foo,foo=bar qemu-system-x86_64: Property '.foo' not found Note no location. This commit restores it: qemu-system-x86_64: -object secret,id=foo,foo=bar: Property '.foo' not found Note that the qemu_opts_foreach() bug just fixed could mask the bug here: if the location it leaves dangling hasn't been clobbered, yet, it's the correct one. Reported-by: Eric Blake <eblake@redhat.com> Cc: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1461767349-15329-4-git-send-email-armbru@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> [Paragraph on Error added to commit message]
Diffstat (limited to 'qom')
-rw-r--r--qom/object_interfaces.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/qom/object_interfaces.c b/qom/object_interfaces.c
index ab5da35..3931890 100644
--- a/qom/object_interfaces.c
+++ b/qom/object_interfaces.c
@@ -170,6 +170,7 @@ int user_creatable_add_opts_foreach(void *opaque, QemuOpts *opts, Error **errp)
{
bool (*type_predicate)(const char *) = opaque;
Object *obj = NULL;
+ Error *err = NULL;
const char *type;
type = qemu_opt_get(opts, "qom-type");
@@ -178,8 +179,9 @@ int user_creatable_add_opts_foreach(void *opaque, QemuOpts *opts, Error **errp)
return 0;
}
- obj = user_creatable_add_opts(opts, errp);
+ obj = user_creatable_add_opts(opts, &err);
if (!obj) {
+ error_report_err(err);
return -1;
}
object_unref(obj);