From 51b9b478cc238ad23a78ffd713f9c18bbc3907e6 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 27 Apr 2016 16:29:09 +0200 Subject: 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 Cc: Daniel P. Berrange Signed-off-by: Markus Armbruster Message-Id: <1461767349-15329-4-git-send-email-armbru@redhat.com> Reviewed-by: Daniel P. Berrange Reviewed-by: Eric Blake [Paragraph on Error added to commit message] --- qom/object_interfaces.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'qom/object_interfaces.c') diff --git a/qom/object_interfaces.c b/qom/object_interfaces.c index ab5da35e4f..393189024f 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); -- cgit 1.4.1