From patchwork Mon Feb 14 18:31:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rolf Eike Beer X-Patchwork-Id: 12745972 X-Patchwork-Delegate: kuba@kernel.org 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 58F8DC433F5 for ; Mon, 14 Feb 2022 18:31:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350001AbiBNSbV (ORCPT ); Mon, 14 Feb 2022 13:31:21 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:39614 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236950AbiBNSbU (ORCPT ); Mon, 14 Feb 2022 13:31:20 -0500 Received: from mail.sf-mail.de (mail.sf-mail.de [IPv6:2a01:4f8:1c17:6fae:616d:6c69:616d:6c69]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1BA46652DF for ; Mon, 14 Feb 2022 10:31:12 -0800 (PST) Received: (qmail 3113 invoked from network); 14 Feb 2022 18:29:25 -0000 Received: from p200300cf070c090076d435fffeb7be92.dip0.t-ipconnect.de ([2003:cf:70c:900:76d4:35ff:feb7:be92]:55228 HELO eto.sf-tec.de) (auth=eike@sf-mail.de) by mail.sf-mail.de (Qsmtpd 0.38dev) with (TLS_AES_256_GCM_SHA384 encrypted) ESMTPSA for ; Mon, 14 Feb 2022 19:29:25 +0100 From: Rolf Eike Beer To: netdev@vger.kernel.org Subject: [PATCH 4/x] sunhme: switch to devres Date: Mon, 14 Feb 2022 19:31:09 +0100 Message-ID: <11922663.O9o76ZdvQC@eto.sf-tec.de> In-Reply-To: <4686583.GXAFRqVoOG@eto.sf-tec.de> References: <4686583.GXAFRqVoOG@eto.sf-tec.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org This not only removes a lot of code, it also fixes the memleak of the DMA memory when register_netdev() fails. Signed-off-by: Rolf Eike Beer Signed-off-by: Rolf Eike Beer Signed-off-by: Sean Anderson Reviewed-by: Sean Anderson --- drivers/net/ethernet/sun/sunhme.c | 55 +++++++++---------------------- 1 file changed, 16 insertions(+), 39 deletions(-) diff --git a/drivers/net/ethernet/sun/sunhme.c b/drivers/net/ethernet/sun/sunhme.c index 980a936ce8d1..ec78f43f75c9 100644 --- a/drivers/net/ethernet/sun/sunhme.c +++ b/drivers/net/ethernet/sun/sunhme.c @@ -2952,7 +2952,6 @@ static int happy_meal_pci_probe(struct pci_dev *pdev, struct happy_meal *hp; struct net_device *dev; void __iomem *hpreg_base; - unsigned long hpreg_res; int i, qfe_slot = -1; char prom_name[64]; u8 addr[ETH_ALEN]; @@ -2969,7 +2968,7 @@ static int happy_meal_pci_probe(struct pci_dev *pdev, strcpy(prom_name, "SUNW,hme"); #endif - err = pci_enable_device(pdev); + err = pcim_enable_device(pdev); if (err) goto err_out; @@ -2987,10 +2986,11 @@ static int happy_meal_pci_probe(struct pci_dev *pdev, goto err_out; } - dev = alloc_etherdev(sizeof(struct happy_meal)); - err = -ENOMEM; - if (!dev) + dev = devm_alloc_etherdev(&pdev->dev, sizeof(struct happy_meal)); + if (!dev) { + err = -ENOMEM; goto err_out; + } SET_NETDEV_DEV(dev, &pdev->dev); if (hme_version_printed++ == 0) @@ -3009,21 +3009,23 @@ static int happy_meal_pci_probe(struct pci_dev *pdev, qp->happy_meals[qfe_slot] = dev; } - hpreg_res = pci_resource_start(pdev, 0); - err = -ENODEV; if ((pci_resource_flags(pdev, 0) & IORESOURCE_IO) != 0) { printk(KERN_ERR "happymeal(PCI): Cannot find proper PCI device base address.\n"); goto err_out_clear_quattro; } - if (pci_request_regions(pdev, DRV_NAME)) { + + if (!devm_request_region(&pdev->dev, pci_resource_start(pdev, 0), + pci_resource_len(pdev, 0), + DRV_NAME)) { printk(KERN_ERR "happymeal(PCI): Cannot obtain PCI resources, " "aborting.\n"); goto err_out_clear_quattro; } - if ((hpreg_base = ioremap(hpreg_res, 0x8000)) == NULL) { + hpreg_base = pcim_iomap(pdev, 0, 0x8000); + if (!hpreg_base) { printk(KERN_ERR "happymeal(PCI): Unable to remap card memory.\n"); - goto err_out_free_res; + goto err_out_clear_quattro; } for (i = 0; i < 6; i++) { @@ -3089,11 +3091,10 @@ static int happy_meal_pci_probe(struct pci_dev *pdev, hp->happy_bursts = DMA_BURSTBITS; #endif - hp->happy_block = dma_alloc_coherent(&pdev->dev, PAGE_SIZE, + hp->happy_block = dmam_alloc_coherent(&pdev->dev, PAGE_SIZE, &hp->hblock_dvma, GFP_KERNEL); - err = -ENODEV; if (!hp->happy_block) - goto err_out_iounmap; + goto err_out_clear_quattro; hp->linkcheck = 0; hp->timer_state = asleep; @@ -3127,11 +3128,11 @@ static int happy_meal_pci_probe(struct pci_dev *pdev, happy_meal_set_initial_advertisement(hp); spin_unlock_irq(&hp->happy_lock); - err = register_netdev(hp->dev); + err = devm_register_netdev(&pdev->dev, dev); if (err) { printk(KERN_ERR "happymeal(PCI): Cannot register net device, " "aborting.\n"); - goto err_out_iounmap; + goto err_out_clear_quattro; } pci_set_drvdata(pdev, hp); @@ -3164,37 +3165,14 @@ static int happy_meal_pci_probe(struct pci_dev *pdev, return 0; -err_out_iounmap: - iounmap(hp->gregs); - -err_out_free_res: - pci_release_regions(pdev); - err_out_clear_quattro: if (qp != NULL) qp->happy_meals[qfe_slot] = NULL; - free_netdev(dev); - err_out: return err; } -static void happy_meal_pci_remove(struct pci_dev *pdev) -{ - struct happy_meal *hp = pci_get_drvdata(pdev); - struct net_device *net_dev = hp->dev; - - unregister_netdev(net_dev); - - dma_free_coherent(hp->dma_dev, PAGE_SIZE, - hp->happy_block, hp->hblock_dvma); - iounmap(hp->gregs); - pci_release_regions(hp->happy_dev); - - free_netdev(net_dev); -} - static const struct pci_device_id happymeal_pci_ids[] = { { PCI_DEVICE(PCI_VENDOR_ID_SUN, PCI_DEVICE_ID_SUN_HAPPYMEAL) }, { } /* Terminating entry */ @@ -3206,7 +3184,6 @@ static struct pci_driver hme_pci_driver = { .name = "hme", .id_table = happymeal_pci_ids, .probe = happy_meal_pci_probe, - .remove = happy_meal_pci_remove, }; static int __init happy_meal_pci_init(void)