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Thu, 03 Dec 2020 12:23:29 -0500 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-506-rK4mZqEtMymmVulttgb-7A-1; Thu, 03 Dec 2020 12:23:24 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id DD3BBAFA82; Thu, 3 Dec 2020 17:23:23 +0000 (UTC) Received: from merkur.fritz.box (ovpn-114-175.ams2.redhat.com [10.36.114.175]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9D3B163BA7; Thu, 3 Dec 2020 17:23:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1607016206; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=3WFvJcaC3EqpqiHgXJzqCNHaLxRITJyMEzdiPt+ayJw=; b=IzvIu4ArGtyglOryTFcC6fTx+Olj1cjHX/hoR3yTaAjJK6PN/vNcjCHvxM+gyAuZ9gihVn ZTrJh2EJwoHwE8aDm1w+lfabcGHU30h8Nw3ghM6360c7HIqUtxgHJ7QAzqrtDKI0YKe8Us mhu43zgcIHPtQi/BNNfdSP7H2l5lw98= X-MC-Unique: rK4mZqEtMymmVulttgb-7A-1 From: Kevin Wolf To: qemu-block@nongnu.org Subject: [PATCH 1/3] block: Simplify qmp_block_resize() error paths Date: Thu, 3 Dec 2020 18:23:09 +0100 Message-Id: <20201203172311.68232-2-kwolf@redhat.com> In-Reply-To: <20201203172311.68232-1-kwolf@redhat.com> References: <20201203172311.68232-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kwolf@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=63.128.21.124; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -35 X-Spam_score: -3.6 X-Spam_bar: --- X-Spam_report: (-3.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.495, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, qemu-devel@nongnu.org, qemu-stable@nongnu.org, stefanha@redhat.com, mreitz@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" The only thing that happens after the 'out:' label is blk_unref(blk). However, blk =3D NULL in all of the error cases, so instead of jumping to 'out:', we can just return directly. Cc: qemu-stable@nongnu.org Signed-off-by: Kevin Wolf Reviewed-by: Vladimir Sementsov-Ogievskiy --- blockdev.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/blockdev.c b/blockdev.c index fe6fb5dc1d..229d2cce1b 100644 --- a/blockdev.c +++ b/blockdev.c @@ -2468,17 +2468,17 @@ void coroutine_fn qmp_block_resize(bool has_device,= const char *device, =20 if (size < 0) { error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "size", "a >0 size"= ); - goto out; + return; } =20 if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_RESIZE, NULL)) { error_setg(errp, QERR_DEVICE_IN_USE, device); - goto out; + return; } =20 blk =3D blk_new_with_bs(bs, BLK_PERM_RESIZE, BLK_PERM_ALL, errp); if (!blk) { - goto out; + return; } =20 bdrv_drained_begin(bs); @@ -2487,7 +2487,6 @@ void coroutine_fn qmp_block_resize(bool has_device, c= onst char *device, bdrv_co_leave(bs, old_ctx); bdrv_drained_end(bs); =20 -out: bdrv_co_lock(bs); blk_unref(blk); bdrv_co_unlock(bs); --=20 2.28.0