From patchwork Wed Oct 17 10:09:54 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 192000 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 73DDB2C008D for ; Wed, 17 Oct 2012 21:24:24 +1100 (EST) Received: from localhost ([::1]:47299 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TOQaU-0007be-Ar for incoming@patchwork.ozlabs.org; Wed, 17 Oct 2012 06:10:54 -0400 Received: from eggs.gnu.org ([208.118.235.92]:47572) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TOQZr-0005ne-4R for qemu-devel@nongnu.org; Wed, 17 Oct 2012 06:10:20 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TOQZb-0007fT-43 for qemu-devel@nongnu.org; Wed, 17 Oct 2012 06:10:15 -0400 Received: from mx1.redhat.com ([209.132.183.28]:1134) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TOQZa-0007f3-RB for qemu-devel@nongnu.org; Wed, 17 Oct 2012 06:09:59 -0400 Received: from int-mx12.intmail.prod.int.phx2.redhat.com (int-mx12.intmail.prod.int.phx2.redhat.com [10.5.11.25]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id q9HA9vvM002494 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Wed, 17 Oct 2012 06:09:58 -0400 Received: from rincewind.home.kraxel.org (ovpn-116-27.ams2.redhat.com [10.36.116.27]) by int-mx12.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id q9HA9uhx009318; Wed, 17 Oct 2012 06:09:57 -0400 Received: by rincewind.home.kraxel.org (Postfix, from userid 500) id 2FE3744133; Wed, 17 Oct 2012 12:09:55 +0200 (CEST) From: Gerd Hoffmann To: qemu-devel@nongnu.org Date: Wed, 17 Oct 2012 12:09:54 +0200 Message-Id: <1350468595-5238-3-git-send-email-kraxel@redhat.com> In-Reply-To: <1350468595-5238-1-git-send-email-kraxel@redhat.com> References: <1350468595-5238-1-git-send-email-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.25 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 209.132.183.28 Cc: Gerd Hoffmann Subject: [Qemu-devel] [PATCH 2/3] chardev: fix QemuOpts lifecycle X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org qemu_chr_new_from_opts handles QemuOpts release now, so callers don't have to worry. It will either be saved in CharDriverState, then released in qemu_chr_delete, or in the error case released instantly. Signed-off-by: Gerd Hoffmann --- qemu-char.c | 15 ++++++++++----- qemu-char.h | 1 + 2 files changed, 11 insertions(+), 5 deletions(-) diff --git a/qemu-char.c b/qemu-char.c index e2e1da8..be4ec61 100644 --- a/qemu-char.c +++ b/qemu-char.c @@ -2763,13 +2763,13 @@ CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts, if (qemu_opts_id(opts) == NULL) { error_setg(errp, "chardev: no id specified\n"); - return NULL; + goto err; } if (qemu_opt_get(opts, "backend") == NULL) { error_setg(errp, "chardev: \"%s\" missing backend\n", qemu_opts_id(opts)); - return NULL; + goto err; } for (i = 0; i < ARRAY_SIZE(backend_table); i++) { if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0) @@ -2778,14 +2778,14 @@ CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts, if (i == ARRAY_SIZE(backend_table)) { error_setg(errp, "chardev: backend \"%s\" not found\n", qemu_opt_get(opts, "backend")); - return NULL; + goto err; } chr = backend_table[i].open(opts); if (!chr) { error_setg(errp, "chardev: opening backend \"%s\" failed\n", qemu_opt_get(opts, "backend")); - return NULL; + goto err; } if (!chr->filename) @@ -2806,7 +2806,12 @@ CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts, chr->avail_connections = 1; } chr->label = g_strdup(qemu_opts_id(opts)); + chr->opts = opts; return chr; + +err: + qemu_opts_del(opts); + return NULL; } CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s)) @@ -2832,7 +2837,6 @@ CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*in if (chr && qemu_opt_get_bool(opts, "mux", 0)) { monitor_init(chr, MONITOR_USE_READLINE); } - qemu_opts_del(opts); return chr; } @@ -2864,6 +2868,7 @@ void qemu_chr_delete(CharDriverState *chr) chr->chr_close(chr); g_free(chr->filename); g_free(chr->label); + qemu_opts_del(chr->opts); g_free(chr); } diff --git a/qemu-char.h b/qemu-char.h index adae13e..99bc132 100644 --- a/qemu-char.h +++ b/qemu-char.h @@ -74,6 +74,7 @@ struct CharDriverState { char *filename; int opened; int avail_connections; + QemuOpts *opts; QTAILQ_ENTRY(CharDriverState) next; };