From patchwork Wed Apr 24 12:54:41 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?C=C3=A9dric_Le_Goater?= X-Patchwork-Id: 13641828 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D16DDC10F15 for ; Wed, 24 Apr 2024 12:55:25 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rzc9Z-0003W6-Rr; Wed, 24 Apr 2024 08:55:13 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rzc9F-0003GX-Qs for qemu-devel@nongnu.org; Wed, 24 Apr 2024 08:54:54 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rzc9B-0007YB-Sv for qemu-devel@nongnu.org; Wed, 24 Apr 2024 08:54:52 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1713963287; 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; bh=3uxEL/eaBitS4ripjbD/SsCCxCLbXLWasb2GwhrpJVk=; b=djNx1HtzaQY8T2We8DvU6+spulOCQb9g2ymWjbw36tdRuNUCD/prF7//A5KQrFHHLqhY7t gRqDNw+c3WPng7R2ArQFPCyx8qTYBGgcUprgJN1bk0qh5CEUQSlRbmOICI8rNrOyZ7jeZT Jos+/jYZHl95ouLhzRM1fL5YXScR7jA= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-244-QZvwdj7EOtefTQbjO3hdvw-1; Wed, 24 Apr 2024 08:54:45 -0400 X-MC-Unique: QZvwdj7EOtefTQbjO3hdvw-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 6B5E280D678; Wed, 24 Apr 2024 12:54:45 +0000 (UTC) Received: from corto.redhat.com (unknown [10.39.195.34]) by smtp.corp.redhat.com (Postfix) with ESMTP id 62F16EC683; Wed, 24 Apr 2024 12:54:43 +0000 (UTC) From: =?utf-8?q?C=C3=A9dric_Le_Goater?= To: Thomas Huth , Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_Goat?= =?utf-8?q?er?= , Eric Farman , Matthew Rosato Cc: qemu-s390x@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH] vfio/ccw: Use g_autofree variable Date: Wed, 24 Apr 2024 14:54:41 +0200 Message-ID: <20240424125441.215953-1-clg@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.5 Received-SPF: pass client-ip=170.10.133.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.668, 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=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Also change the return value of vfio_ccw_register_irq_notifier() to be a bool since it takes and 'Error **' argument. See the qapi/error.h Rules section. Signed-off-by: Cédric Le Goater Reviewed-by: Thomas Huth Reviewed-by: Markus Armbruster --- hw/vfio/ccw.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) diff --git a/hw/vfio/ccw.c b/hw/vfio/ccw.c index 90e4a534371684c08e112364e1537eb8979f73f4..1c630f6e9abe93ae0c2b5615d4409669f096c8c9 100644 --- a/hw/vfio/ccw.c +++ b/hw/vfio/ccw.c @@ -379,12 +379,12 @@ read_err: css_inject_io_interrupt(sch); } -static void vfio_ccw_register_irq_notifier(VFIOCCWDevice *vcdev, +static bool vfio_ccw_register_irq_notifier(VFIOCCWDevice *vcdev, unsigned int irq, Error **errp) { VFIODevice *vdev = &vcdev->vdev; - struct vfio_irq_info *irq_info; + g_autofree struct vfio_irq_info *irq_info = NULL; size_t argsz; int fd; EventNotifier *notifier; @@ -405,13 +405,13 @@ static void vfio_ccw_register_irq_notifier(VFIOCCWDevice *vcdev, break; default: error_setg(errp, "vfio: Unsupported device irq(%d)", irq); - return; + return false; } if (vdev->num_irqs < irq + 1) { error_setg(errp, "vfio: IRQ %u not available (number of irqs %u)", irq, vdev->num_irqs); - return; + return false; } argsz = sizeof(*irq_info); @@ -421,14 +421,14 @@ static void vfio_ccw_register_irq_notifier(VFIOCCWDevice *vcdev, if (ioctl(vdev->fd, VFIO_DEVICE_GET_IRQ_INFO, irq_info) < 0 || irq_info->count < 1) { error_setg_errno(errp, errno, "vfio: Error getting irq info"); - goto out_free_info; + return false; } if (event_notifier_init(notifier, 0)) { error_setg_errno(errp, errno, "vfio: Unable to init event notifier for irq (%d)", irq); - goto out_free_info; + return false; } fd = event_notifier_get_fd(notifier); @@ -440,8 +440,7 @@ static void vfio_ccw_register_irq_notifier(VFIOCCWDevice *vcdev, event_notifier_cleanup(notifier); } -out_free_info: - g_free(irq_info); + return true; } static void vfio_ccw_unregister_irq_notifier(VFIOCCWDevice *vcdev, @@ -605,20 +604,18 @@ static void vfio_ccw_realize(DeviceState *dev, Error **errp) goto out_region_err; } - vfio_ccw_register_irq_notifier(vcdev, VFIO_CCW_IO_IRQ_INDEX, &err); - if (err) { + if (!vfio_ccw_register_irq_notifier(vcdev, VFIO_CCW_IO_IRQ_INDEX, &err)) { goto out_io_notifier_err; } if (vcdev->crw_region) { - vfio_ccw_register_irq_notifier(vcdev, VFIO_CCW_CRW_IRQ_INDEX, &err); - if (err) { + if (!vfio_ccw_register_irq_notifier(vcdev, VFIO_CCW_CRW_IRQ_INDEX, + &err)) { goto out_irq_notifier_err; } } - vfio_ccw_register_irq_notifier(vcdev, VFIO_CCW_REQ_IRQ_INDEX, &err); - if (err) { + if (!vfio_ccw_register_irq_notifier(vcdev, VFIO_CCW_REQ_IRQ_INDEX, &err)) { /* * Report this error, but do not make it a failing condition. * Lack of this IRQ in the host does not prevent normal operation.