From ff924448849f4fca48df15ecad67dc93854392e5 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 12 Oct 2022 17:37:59 +0200 Subject: backends: Improve error messages when property can no longer be set When you try to set virtio-rng property "filename" after the backend has been completed with user_creatable_complete(), the error message blames "insufficient permission": $ qemu-system-x86_64 -S -display none -nodefaults -monitor stdio -object rng-random,id=rng0 -device virtio-rng,id=vrng0,rng=rng0 QEMU 7.1.50 monitor - type 'help' for more information (qemu) qom-set /objects/rng0 filename /dev/random Error: Insufficient permission to perform this operation This implies it could work with "sufficient permission". It can't. Change the error message to: Error: Property 'filename' can no longer be set Same for cryptodev-vhost-user property "chardev", rng-egd property "chardev", and vhost-user-backend property "chardev". Signed-off-by: Markus Armbruster Message-Id: <20221012153801.2604340-3-armbru@redhat.com> Acked-by: Michael S. Tsirkin [Commit message tidied up] --- backends/vhost-user.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'backends/vhost-user.c') diff --git a/backends/vhost-user.c b/backends/vhost-user.c index 10b39992d2..5dedb2d987 100644 --- a/backends/vhost-user.c +++ b/backends/vhost-user.c @@ -141,7 +141,7 @@ static void set_chardev(Object *obj, const char *value, Error **errp) Chardev *chr; if (b->completed) { - error_setg(errp, QERR_PERMISSION_DENIED); + error_setg(errp, "Property 'chardev' can no longer be set"); return; } -- cgit 1.4.1