From 3fd2092fd11b9e4220a08eca0663cc59178a6c3f Mon Sep 17 00:00:00 2001 From: =?utf8?q?Daniel=20P=2E=20Berrang=C3=A9?= Date: Fri, 21 Dec 2018 13:41:15 +0000 Subject: [PATCH] hw/usb: fix mistaken de-initialization of CCID state MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit In previous commit: commit 7dea29e4af17fc1d27478de9f8ea38144deac54a Author: Li Qiang Date: Fri Oct 19 03:50:36 2018 -0700 hw: ccid-card-emulated: cleanup resource when realize in error path The emulated_realize method was changed so that it jumps to a cleanup label to de-initialize state upon error. This change failed to ensure the success path exited the method before this point though. So the mutexes are always destroyed even in normal operation. The result is as crashtastic as expected: $ qemu-system-x86_64 -usb -device usb-ccid,id=ccid0 -device ccid-card-emulated,backend=nss-emulated,id=smartcard0,bus=ccid0.0 qemu-system-x86_64: util/qemu-thread-posix.c:64: qemu_mutex_lock_impl: Assertion `mutex->initialized' failed. Aborted (core dumped) Fixes: 7dea29e4af1 Reported-by: Michael Tokarev Signed-off-by: Daniel P. Berrangé Reviewed-by: Michael Tokarev Reviewed-by: Philippe Mathieu-Daudé Tested-by: Philippe Mathieu-Daudé Message-id: 20181221134115.27973-1-berrange@redhat.com Signed-off-by: Gerd Hoffmann --- hw/usb/ccid-card-emulated.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/hw/usb/ccid-card-emulated.c b/hw/usb/ccid-card-emulated.c index 25976ed84f..e0457d305b 100644 --- a/hw/usb/ccid-card-emulated.c +++ b/hw/usb/ccid-card-emulated.c @@ -549,6 +549,8 @@ static void emulated_realize(CCIDCardState *base, Error **errp) qemu_thread_create(&card->apdu_thread_id, "ccid/apdu", handle_apdu_thread, card, QEMU_THREAD_JOINABLE); + return; + out2: clean_event_notifier(card); out1: -- 2.11.4.GIT