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Message-ID: <20210310002137.chikq3biol5vyxgp@Rk>
Date:   Wed, 10 Mar 2021 08:21:37 +0800
From:   Coiby Xu <coiby.xu@...il.com>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     kbuild@...ts.01.org, lkp@...el.com, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: drivers/staging/qlge/qlge_main.c:4564 qlge_probe() warn: missing
 error code 'err'

Hi Dan,

Thanks for finding this issue! I'll submit all the patches including the
one for the previous issue reported by you ("[bug report] staging: qlge: 
Initialize devlink health dump framework") after finishing all items 
listed in drivers/staging/qlge/TODO.

On Thu, Feb 25, 2021 at 01:03:03PM +0300, Dan Carpenter wrote:
>tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>head:   29c395c77a9a514c5857c45ceae2665e9bd99ac7
>commit: 953b94009377419f28fd0153f91fcd5b5a347608 staging: qlge: Initialize devlink health dump framework
>config: i386-randconfig-m021-20210225 (attached as .config)
>compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
>
>If you fix the issue, kindly add following tag as appropriate
>Reported-by: kernel test robot <lkp@...el.com>
>Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
>
>smatch warnings:
>drivers/staging/qlge/qlge_main.c:4564 qlge_probe() warn: missing error code 'err'
>
>vim +/err +4564 drivers/staging/qlge/qlge_main.c
>
>5d8e87265715a1 drivers/net/ethernet/qlogic/qlge/qlge_main.c Bill Pemberton     2012-12-03  4544  static int qlge_probe(struct pci_dev *pdev,
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4545  		      const struct pci_device_id *pci_entry)
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4546  {
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4547  	struct qlge_netdev_priv *ndev_priv;
>f8c047be540197 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4548  	struct qlge_adapter *qdev = NULL;
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4549  	struct net_device *ndev = NULL;
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4550  	struct devlink *devlink;
>f41e1a0a9462fc drivers/staging/qlge/qlge_main.c             Dorothea Ehrl      2019-11-27  4551  	static int cards_found;
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4552  	int err = 0;
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4553
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4554  	devlink = devlink_alloc(&qlge_devlink_ops, sizeof(struct qlge_adapter));
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4555  	if (!devlink)
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4556  		return -ENOMEM;
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4557
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4558  	qdev = devlink_priv(devlink);
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4559
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4560  	ndev = alloc_etherdev_mq(sizeof(struct qlge_netdev_priv),
>1b998958b301fb drivers/staging/qlge/qlge_main.c             Scott Schafer      2019-12-11  4561  				 min(MAX_CPUS,
>1b998958b301fb drivers/staging/qlge/qlge_main.c             Scott Schafer      2019-12-11  4562  				     netif_get_num_default_rss_queues()));
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4563  	if (!ndev)
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23 @4564  		goto devlink_free;
>
>"err = -ENOMEM;"
>
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4565
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4566  	ndev_priv = netdev_priv(ndev);
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4567  	ndev_priv->qdev = qdev;
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4568  	ndev_priv->ndev = ndev;
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4569  	qdev->ndev = ndev;
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4570  	err = qlge_init_device(pdev, qdev, cards_found);
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4571  	if (err < 0)
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4572  		goto netdev_free;
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4573
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4574  	SET_NETDEV_DEV(ndev, &pdev->dev);
>a45adbe8d35247 drivers/net/ethernet/qlogic/qlge/qlge_main.c Jitendra Kalsaria  2013-09-27  4575  	ndev->hw_features = NETIF_F_SG |
>a45adbe8d35247 drivers/net/ethernet/qlogic/qlge/qlge_main.c Jitendra Kalsaria  2013-09-27  4576  		NETIF_F_IP_CSUM |
>a45adbe8d35247 drivers/net/ethernet/qlogic/qlge/qlge_main.c Jitendra Kalsaria  2013-09-27  4577  		NETIF_F_TSO |
>a45adbe8d35247 drivers/net/ethernet/qlogic/qlge/qlge_main.c Jitendra Kalsaria  2013-09-27  4578  		NETIF_F_TSO_ECN |
>a45adbe8d35247 drivers/net/ethernet/qlogic/qlge/qlge_main.c Jitendra Kalsaria  2013-09-27  4579  		NETIF_F_HW_VLAN_CTAG_TX |
>a45adbe8d35247 drivers/net/ethernet/qlogic/qlge/qlge_main.c Jitendra Kalsaria  2013-09-27  4580  		NETIF_F_HW_VLAN_CTAG_RX |
>a45adbe8d35247 drivers/net/ethernet/qlogic/qlge/qlge_main.c Jitendra Kalsaria  2013-09-27  4581  		NETIF_F_HW_VLAN_CTAG_FILTER |
>a45adbe8d35247 drivers/net/ethernet/qlogic/qlge/qlge_main.c Jitendra Kalsaria  2013-09-27  4582  		NETIF_F_RXCSUM;
>a45adbe8d35247 drivers/net/ethernet/qlogic/qlge/qlge_main.c Jitendra Kalsaria  2013-09-27  4583  	ndev->features = ndev->hw_features;
>1a0150a93c4969 drivers/net/ethernet/qlogic/qlge/qlge_main.c brenohl@...ibm.com 2012-07-27  4584  	ndev->vlan_features = ndev->hw_features;
>51bb352f15595f drivers/net/ethernet/qlogic/qlge/qlge_main.c Jitendra Kalsaria  2014-01-14  4585  	/* vlan gets same features (except vlan filter) */
>f6d1ac4b5f15f5 drivers/net/ethernet/qlogic/qlge/qlge_main.c Vlad Yasevich      2014-03-27  4586  	ndev->vlan_features &= ~(NETIF_F_HW_VLAN_CTAG_FILTER |
>f6d1ac4b5f15f5 drivers/net/ethernet/qlogic/qlge/qlge_main.c Vlad Yasevich      2014-03-27  4587  				 NETIF_F_HW_VLAN_CTAG_TX |
>f6d1ac4b5f15f5 drivers/net/ethernet/qlogic/qlge/qlge_main.c Vlad Yasevich      2014-03-27  4588  				 NETIF_F_HW_VLAN_CTAG_RX);
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4589
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4590  	if (test_bit(QL_DMA64, &qdev->flags))
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4591  		ndev->features |= NETIF_F_HIGHDMA;
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4592
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4593  	/*
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4594  	 * Set up net_device structure.
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4595  	 */
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4596  	ndev->tx_queue_len = qdev->tx_ring_size;
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4597  	ndev->irq = pdev->irq;
>25ed784910e43e drivers/net/qlge/qlge_main.c                 Stephen Hemminger  2008-11-21  4598
>25ed784910e43e drivers/net/qlge/qlge_main.c                 Stephen Hemminger  2008-11-21  4599  	ndev->netdev_ops = &qlge_netdev_ops;
>7ad24ea4bf620a drivers/net/ethernet/qlogic/qlge/qlge_main.c Wilfried Klaebe    2014-05-11  4600  	ndev->ethtool_ops = &qlge_ethtool_ops;
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4601  	ndev->watchdog_timeo = 10 * HZ;
>25ed784910e43e drivers/net/qlge/qlge_main.c                 Stephen Hemminger  2008-11-21  4602
>d894be57ca92c8 drivers/net/ethernet/qlogic/qlge/qlge_main.c Jarod Wilson       2016-10-20  4603  	/* MTU range: this driver only supports 1500 or 9000, so this only
>d894be57ca92c8 drivers/net/ethernet/qlogic/qlge/qlge_main.c Jarod Wilson       2016-10-20  4604  	 * filters out values above or below, and we'll rely on
>d894be57ca92c8 drivers/net/ethernet/qlogic/qlge/qlge_main.c Jarod Wilson       2016-10-20  4605  	 * qlge_change_mtu to make sure only 1500 or 9000 are allowed
>d894be57ca92c8 drivers/net/ethernet/qlogic/qlge/qlge_main.c Jarod Wilson       2016-10-20  4606  	 */
>d894be57ca92c8 drivers/net/ethernet/qlogic/qlge/qlge_main.c Jarod Wilson       2016-10-20  4607  	ndev->min_mtu = ETH_DATA_LEN;
>d894be57ca92c8 drivers/net/ethernet/qlogic/qlge/qlge_main.c Jarod Wilson       2016-10-20  4608  	ndev->max_mtu = 9000;
>d894be57ca92c8 drivers/net/ethernet/qlogic/qlge/qlge_main.c Jarod Wilson       2016-10-20  4609
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4610  	err = register_netdev(ndev);
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4611  	if (err) {
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4612  		dev_err(&pdev->dev, "net device registration failed.\n");
>f8c047be540197 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4613  		qlge_release_all(pdev);
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4614  		pci_disable_device(pdev);
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4615  		goto netdev_free;
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4616  	}
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4617
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4618  	err = devlink_register(devlink, &pdev->dev);
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4619  	if (err)
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4620  		goto netdev_free;
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4621
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4622  	qlge_health_create_reporters(qdev);
>15c052fc7f4a1b drivers/net/qlge/qlge_main.c                 Ron Mercer         2010-02-04  4623  	/* Start up the timer to trigger EEH if
>15c052fc7f4a1b drivers/net/qlge/qlge_main.c                 Ron Mercer         2010-02-04  4624  	 * the bus goes dead
>15c052fc7f4a1b drivers/net/qlge/qlge_main.c                 Ron Mercer         2010-02-04  4625  	 */
>f8c047be540197 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4626  	timer_setup(&qdev->timer, qlge_timer, TIMER_DEFERRABLE);
>df7e828c1b6997 drivers/net/ethernet/qlogic/qlge/qlge_main.c Kees Cook          2017-10-04  4627  	mod_timer(&qdev->timer, jiffies + (5 * HZ));
>f8c047be540197 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4628  	qlge_link_off(qdev);
>f8c047be540197 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4629  	qlge_display_dev_info(ndev);
>9dfbbaa6b0b9f7 drivers/net/qlge/qlge_main.c                 Ron Mercer         2009-10-30  4630  	atomic_set(&qdev->lb_count, 0);
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4631  	cards_found++;
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4632  	return 0;
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4633
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4634  netdev_free:
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4635  	free_netdev(ndev);
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4636  devlink_free:
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4637  	devlink_free(devlink);
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4638
>953b9400937741 drivers/staging/qlge/qlge_main.c             Coiby Xu           2021-01-23  4639  	return err;
>c4e84bde1d595d drivers/net/qlge/qlge_main.c                 Ron Mercer         2008-09-18  4640  }
>
>---
>0-DAY CI Kernel Test Service, Intel Corporation
>https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org



-- 
Best regards,
Coiby

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