From: Fei Li <shirley17fei@gmail.com>
To: qemu-devel@nongnu.org, shirley17fei@gmail.com
Cc: "Christophe Fergeau" <cfergeau@redhat.com>,
"Markus Armbruster" <armbru@redhat.com>,
"Peter Xu" <peterx@redhat.com>,
"Dr . David Alan Gilbert" <dgilbert@redhat.com>,
"Fei Li" <fli@suse.com>, "Gerd Hoffmann" <kraxel@redhat.com>,
"Marc-André Lureau" <marcandre.lureau@redhat.com>,
"David Gibson" <david@gibson.dropbear.id.au>
Subject: [Qemu-devel] [PATCH v14 06/11] qemu_thread: supplement error handling for emulated_realize
Date: Wed, 17 Jul 2019 10:33:05 +0800 [thread overview]
Message-ID: <20190717023310.197246-7-shirley17fei@gmail.com> (raw)
In-Reply-To: <20190717023310.197246-1-shirley17fei@gmail.com>
From: Fei Li <fli@suse.com>
Utilize the existed errp to propagate the error and do the
corresponding cleanup to replace the temporary &error_abort.
If the second thread fails to be created, use a VEvent to
cancel the first thread before the join().
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Christophe Fergeau <cfergeau@redhat.com>
Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Fei Li <fli@suse.com>
---
hw/usb/ccid-card-emulated.c | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)
diff --git a/hw/usb/ccid-card-emulated.c b/hw/usb/ccid-card-emulated.c
index 4d95ee07aa..bdf1971e6b 100644
--- a/hw/usb/ccid-card-emulated.c
+++ b/hw/usb/ccid-card-emulated.c
@@ -545,11 +545,18 @@ static void emulated_realize(CCIDCardState *base, Error **errp)
error_setg(errp, "%s: failed to initialize vcard", TYPE_EMULATED_CCID);
goto out2;
}
- /* TODO: let the further caller handle the error instead of abort() here */
- qemu_thread_create(&card->event_thread_id, "ccid/event", event_thread,
- card, QEMU_THREAD_JOINABLE, &error_abort);
- qemu_thread_create(&card->apdu_thread_id, "ccid/apdu", handle_apdu_thread,
- card, QEMU_THREAD_JOINABLE, &error_abort);
+ if (qemu_thread_create(&card->event_thread_id, "ccid/event", event_thread,
+ card, QEMU_THREAD_JOINABLE, errp) < 0) {
+ goto out2;
+ }
+ if (qemu_thread_create(&card->apdu_thread_id, "ccid/apdu",
+ handle_apdu_thread, card,
+ QEMU_THREAD_JOINABLE, errp) < 0) {
+ VEvent *vevent = vevent_new(VEVENT_LAST, NULL, NULL);
+ vevent_queue_vevent(vevent); /* stop vevent thread */
+ qemu_thread_join(&card->event_thread_id);
+ goto out2;
+ }
return;
--
2.11.0
next prev parent reply other threads:[~2019-07-17 2:34 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-17 2:32 [Qemu-devel] [PATCH v14 00/11] qemu_thread_create: propagate the error to callers to handle Fei Li
2019-07-17 2:33 ` [Qemu-devel] [PATCH v14 01/11] qemu_thread: make qemu_thread_create() take Error ** argument Fei Li
2019-07-17 5:53 ` David Gibson
2019-07-17 12:27 ` Fei Li
2019-07-17 2:33 ` [Qemu-devel] [PATCH v14 02/11] qemu_thread: supplement error handling for qemu_X_start_vcpu Fei Li
2019-07-17 2:33 ` [Qemu-devel] [PATCH v14 03/11] qemu_thread: supplement error handling for qmp_dump_guest_memory Fei Li
2019-07-17 2:33 ` [Qemu-devel] [PATCH v14 04/11] qemu_thread: supplement error handling for pci_edu_realize Fei Li
2019-07-17 2:33 ` [Qemu-devel] [PATCH v14 05/11] qemu_thread: supplement error handling for h_resize_hpt_prepare Fei Li
2019-07-17 2:33 ` Fei Li [this message]
2019-07-17 2:33 ` [Qemu-devel] [PATCH v14 07/11] qemu_thread: supplement error handling for iothread_complete Fei Li
2019-07-17 2:33 ` [Qemu-devel] [PATCH v14 08/11] qemu_thread: supplement error handling for qemu_signalfd_compat Fei Li
2019-07-17 2:33 ` [Qemu-devel] [PATCH v14 09/11] qemu_thread: supplement error handling for migration Fei Li
2019-07-17 2:33 ` [Qemu-devel] [PATCH v14 10/11] qemu_thread: supplement error handling for vnc_start_worker_thread Fei Li
2019-07-17 2:33 ` [Qemu-devel] [PATCH v14 11/11] qemu_thread: supplement error handling for touch_all_pages Fei Li
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