From patchwork Tue May 16 07:58:09 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amarnath Valluri X-Patchwork-Id: 9728499 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id AE400602B4 for ; Tue, 16 May 2017 08:00:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9FDCD28701 for ; Tue, 16 May 2017 08:00:00 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 94B6828A09; Tue, 16 May 2017 08:00:00 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 2B31B28701 for ; Tue, 16 May 2017 08:00:00 +0000 (UTC) Received: from localhost ([::1]:40317 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dAXOh-0002wD-Dp for patchwork-qemu-devel@patchwork.kernel.org; Tue, 16 May 2017 03:59:59 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51104) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dAXNK-0002pv-3Q for qemu-devel@nongnu.org; Tue, 16 May 2017 03:58:35 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dAXNH-00051o-AG for qemu-devel@nongnu.org; Tue, 16 May 2017 03:58:34 -0400 Received: from mga03.intel.com ([134.134.136.65]:39578) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dAXNH-00051V-25 for qemu-devel@nongnu.org; Tue, 16 May 2017 03:58:31 -0400 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 16 May 2017 00:58:23 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.38,348,1491289200"; d="scan'208";a="968883537" Received: from avallurigigabyte.fi.intel.com ([10.237.72.170]) by orsmga003.jf.intel.com with ESMTP; 16 May 2017 00:58:21 -0700 From: Amarnath Valluri To: qemu-devel@nongnu.org Date: Tue, 16 May 2017 10:58:09 +0300 Message-Id: <1494921494-33717-4-git-send-email-amarnath.valluri@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1494921494-33717-1-git-send-email-amarnath.valluri@intel.com> References: <1494921494-33717-1-git-send-email-amarnath.valluri@intel.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 134.134.136.65 Subject: [Qemu-devel] [PATCH v4 3/8] tpm-backend: Initialize and free data members in it's own methods X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Amarnath Valluri Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Initialize and free TPMBackend data members in it's own instance_init() and instance_finalize methods. Took the opportunity to remove unneeded destroy() method from TpmDriverOps interface as TPMBackend is a Qemu Object, we can use object_unref() inplace of tpm_backend_destroy() to free the backend object, hence removed destroy() from TPMDriverOps interface. Signed-off-by: Amarnath Valluri Reviewed-by: Stefan Berger --- backends/tpm.c | 16 ++++++---------- hw/tpm/tpm_passthrough.c | 31 ++++++++++++------------------- include/sysemu/tpm_backend.h | 7 ------- tpm.c | 2 +- 4 files changed, 19 insertions(+), 37 deletions(-) diff --git a/backends/tpm.c b/backends/tpm.c index ce56c3b..cf5abf1 100644 --- a/backends/tpm.c +++ b/backends/tpm.c @@ -51,15 +51,6 @@ const char *tpm_backend_get_desc(TPMBackend *s) return k->ops->desc(); } -void tpm_backend_destroy(TPMBackend *s) -{ - TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s); - - k->ops->destroy(s); - - tpm_backend_thread_end(s); -} - int tpm_backend_init(TPMBackend *s, TPMState *state, TPMRecvDataCB *datacb) { @@ -182,17 +173,22 @@ static void tpm_backend_prop_set_opened(Object *obj, bool value, Error **errp) static void tpm_backend_instance_init(Object *obj) { + TPMBackend *s = TPM_BACKEND(obj); + object_property_add_bool(obj, "opened", tpm_backend_prop_get_opened, tpm_backend_prop_set_opened, NULL); - + s->fe_model = -1; } static void tpm_backend_instance_finalize(Object *obj) { TPMBackend *s = TPM_BACKEND(obj); + g_free(s->id); + g_free(s->path); + g_free(s->cancel_path); tpm_backend_thread_end(s); } diff --git a/hw/tpm/tpm_passthrough.c b/hw/tpm/tpm_passthrough.c index f50d9cf..815a72e 100644 --- a/hw/tpm/tpm_passthrough.c +++ b/hw/tpm/tpm_passthrough.c @@ -417,8 +417,6 @@ static TPMBackend *tpm_passthrough_create(QemuOpts *opts, const char *id) TPMPassthruState *tpm_pt = TPM_PASSTHROUGH(tb); tb->id = g_strdup(id); - /* let frontend set the fe_model to proper value */ - tb->fe_model = -1; if (tpm_passthrough_handle_device_opts(opts, tb)) { goto err_exit; @@ -432,26 +430,11 @@ static TPMBackend *tpm_passthrough_create(QemuOpts *opts, const char *id) return tb; err_exit: - g_free(tb->id); + object_unref(obj); return NULL; } -static void tpm_passthrough_destroy(TPMBackend *tb) -{ - TPMPassthruState *tpm_pt = TPM_PASSTHROUGH(tb); - - tpm_passthrough_cancel_cmd(tb); - - qemu_close(tpm_pt->tpm_fd); - qemu_close(tpm_pt->cancel_fd); - - g_free(tb->id); - g_free(tb->path); - g_free(tb->cancel_path); - g_free(tpm_pt->tpm_dev); -} - static const QemuOptDesc tpm_passthrough_cmdline_opts[] = { TPM_STANDARD_CMDLINE_OPTS, { @@ -472,7 +455,6 @@ static const TPMDriverOps tpm_passthrough_driver = { .opts = tpm_passthrough_cmdline_opts, .desc = tpm_passthrough_create_desc, .create = tpm_passthrough_create, - .destroy = tpm_passthrough_destroy, .init = tpm_passthrough_init, .startup_tpm = tpm_passthrough_startup_tpm, .realloc_buffer = tpm_passthrough_realloc_buffer, @@ -486,10 +468,21 @@ static const TPMDriverOps tpm_passthrough_driver = { static void tpm_passthrough_inst_init(Object *obj) { + TPMPassthruState *tpm_pt = TPM_PASSTHROUGH(obj); + + tpm_pt->tpm_fd = -1; + tpm_pt->cancel_fd = -1; } static void tpm_passthrough_inst_finalize(Object *obj) { + TPMPassthruState *tpm_pt = TPM_PASSTHROUGH(obj); + + tpm_passthrough_cancel_cmd(TPM_BACKEND(obj)); + + qemu_close(tpm_pt->tpm_fd); + qemu_close(tpm_pt->cancel_fd); + g_free(tpm_pt->tpm_dev); } static void tpm_passthrough_class_init(ObjectClass *klass, void *data) diff --git a/include/sysemu/tpm_backend.h b/include/sysemu/tpm_backend.h index a538a7f..f61bcfe 100644 --- a/include/sysemu/tpm_backend.h +++ b/include/sysemu/tpm_backend.h @@ -78,7 +78,6 @@ struct TPMDriverOps { const char *(*desc)(void); TPMBackend *(*create)(QemuOpts *opts, const char *id); - void (*destroy)(TPMBackend *t); /* initialize the backend */ int (*init)(TPMBackend *t); @@ -118,12 +117,6 @@ enum TpmType tpm_backend_get_type(TPMBackend *s); const char *tpm_backend_get_desc(TPMBackend *s); /** - * tpm_backend_destroy: - * @s: the backend to destroy - */ -void tpm_backend_destroy(TPMBackend *s); - -/** * tpm_backend_init: * @s: the backend to initialized * @state: TPMState diff --git a/tpm.c b/tpm.c index 0ee021a..70f74fa 100644 --- a/tpm.c +++ b/tpm.c @@ -197,7 +197,7 @@ void tpm_cleanup(void) QLIST_FOREACH_SAFE(drv, &tpm_backends, list, next) { QLIST_REMOVE(drv, list); - tpm_backend_destroy(drv); + object_unref(OBJECT(drv)); } }