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Date: Mon, 18 Nov 2019 14:29:01 +0530
From: vishnu <vravulap@....com>
To: Julia Lawall <julia.lawall@...6.fr>,
Ravulapati Vishnu vardhan rao
<Vishnuvardhanrao.Ravulapati@....com>
Cc: Alexander.Deucher@....com, djkurtz@...gle.com,
Akshu.Agrawal@....com, Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Jaroslav Kysela <perex@...ex.cz>,
Takashi Iwai <tiwai@...e.com>,
Vijendar Mukunda <Vijendar.Mukunda@....com>,
Maruthi Srinivas Bayyavarapu <Maruthi.Bayyavarapu@....com>,
Sanju R Mehta <sanju.mehta@....com>,
Dan Carpenter <dan.carpenter@...cle.com>,
Colin Ian King <colin.king@...onical.com>,
"moderated list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEM..."
<alsa-devel@...a-project.org>,
open list <linux-kernel@...r.kernel.org>,
kbuild-all@...ts.01.org
Subject: Re: [PATCH v5 1/6] ASoC: amd:Create multiple I2S platform device
Endpoint (fwd)
Hi Julia,
This is not latest version.I have already send V6 version.
The comment which you gave is for v5 old version.
Thanks,
Vishnu
On 17/11/19 4:31 PM, Julia Lawall wrote:
> On line 70, adata->res is allocated with a devm function, so it shouldn't
> be passed to kfree later; that will lead to a double free.
>
> julia
>
> ---------- Forwarded message ----------
> Date: Sun, 17 Nov 2019 11:44:07 +0800
> From: kbuild test robot <lkp@...el.com>
> To: kbuild@...ts.01.org
> Cc: Julia Lawall <julia.lawall@...6.fr>
> Subject: Re: [PATCH v5 1/6] ASoC: amd:Create multiple I2S platform device
> Endpoint
>
> In-Reply-To: <1573629249-13272-2-git-send-email-Vishnuvardhanrao.Ravulapati@....com>
> References: <1573629249-13272-2-git-send-email-Vishnuvardhanrao.Ravulapati@....com>
>
> Hi Ravulapati,
>
> Thank you for the patch! Perhaps something to improve:
>
> [auto build test WARNING on asoc/for-next]
> [cannot apply to v5.4-rc7 next-20191115]
> [if your patch is applied to the wrong git tree, please drop us a note to help
> improve the system. BTW, we also suggest to use '--base' option to specify the
> base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
>
> url: https://github.com/0day-ci/linux/commits/Ravulapati-Vishnu-vardhan-rao/ASoC-amd-Create-multiple-I2S-platform-device-Endpoint/20191113-230604
> base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
> :::::: branch date: 4 days ago
> :::::: commit date: 4 days ago
>
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@...el.com>
> Reported-by: Julia Lawall <julia.lawall@...6.fr>
>
>>> sound/soc/amd/raven/pci-acp3x.c:142:1-6: WARNING: invalid free of devm_ allocated data
>
> # https://github.com/0day-ci/linux/commit/79701559637a30a0708febfd5119ad05128b2ba5
> git remote add linux-review https://github.com/0day-ci/linux
> git remote update linux-review
> git checkout 79701559637a30a0708febfd5119ad05128b2ba5
> vim +142 sound/soc/amd/raven/pci-acp3x.c
>
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 21
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 22 static int snd_acp3x_probe(struct pci_dev *pci,
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 23 const struct pci_device_id *pci_id)
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 24 {
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 25 int ret;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 26 u32 addr, val, i;
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 27 struct acp3x_dev_data *adata;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 28 struct platform_device_info pdevinfo[ACP3x_DEVS];
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 29 unsigned int irqflags;
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 30
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 31 if (pci_enable_device(pci)) {
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 32 dev_err(&pci->dev, "pci_enable_device failed\n");
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 33 return -ENODEV;
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 34 }
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 35
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 36 ret = pci_request_regions(pci, "AMD ACP3x audio");
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 37 if (ret < 0) {
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 38 dev_err(&pci->dev, "pci_request_regions failed\n");
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 39 goto disable_pci;
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 40 }
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 41
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 42 adata = devm_kzalloc(&pci->dev, sizeof(struct acp3x_dev_data),
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 43 GFP_KERNEL);
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 44 if (!adata) {
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 45 ret = -ENOMEM;
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 46 goto release_regions;
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 47 }
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 48
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 49 /* check for msi interrupt support */
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 50 ret = pci_enable_msi(pci);
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 51 if (ret)
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 52 /* msi is not enabled */
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 53 irqflags = IRQF_SHARED;
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 54 else
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 55 /* msi is enabled */
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 56 irqflags = 0;
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 57
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 58 addr = pci_resource_start(pci, 0);
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 59 adata->acp3x_base = ioremap(addr, pci_resource_len(pci, 0));
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 60 if (!adata->acp3x_base) {
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 61 ret = -ENOMEM;
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 62 goto release_regions;
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 63 }
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 64 pci_set_master(pci);
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 65 pci_set_drvdata(pci, adata);
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 66
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 67 val = rv_readl(adata->acp3x_base + mmACP_I2S_PIN_CONFIG);
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 68 switch (val) {
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 69 case I2S_MODE:
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 70 adata->res = devm_kzalloc(&pci->dev,
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 71 sizeof(struct resource) * 4,
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 72 GFP_KERNEL);
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 73 if (!adata->res) {
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 74 ret = -ENOMEM;
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 75 goto unmap_mmio;
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 76 }
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 77
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 78 adata->res[0].name = "acp3x_i2s_iomem";
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 79 adata->res[0].flags = IORESOURCE_MEM;
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 80 adata->res[0].start = addr;
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 81 adata->res[0].end = addr + (ACP3x_REG_END - ACP3x_REG_START);
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 82
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 83 adata->res[1].name = "acp3x_i2s_sp";
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 84 adata->res[1].flags = IORESOURCE_MEM;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 85 adata->res[1].start = addr + ACP3x_I2STDM_REG_START;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 86 adata->res[1].end = addr + ACP3x_I2STDM_REG_END;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 87
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 88 adata->res[2].name = "acp3x_i2s_bt";
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 89 adata->res[2].flags = IORESOURCE_MEM;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 90 adata->res[2].start = addr + ACP3x_BT_TDM_REG_START;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 91 adata->res[2].end = addr + ACP3x_BT_TDM_REG_END;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 92
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 93 adata->res[3].name = "acp3x_i2s_irq";
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 94 adata->res[3].flags = IORESOURCE_IRQ;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 95 adata->res[3].start = pci->irq;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 96 adata->res[3].end = adata->res[3].start;
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 97
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 98 adata->acp3x_audio_mode = ACP3x_I2S_MODE;
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 99
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 100 memset(&pdevinfo, 0, sizeof(pdevinfo));
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 101 pdevinfo[0].name = "acp3x_rv_i2s_dma";
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 102 pdevinfo[0].id = 0;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 103 pdevinfo[0].parent = &pci->dev;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 104 pdevinfo[0].num_res = 4;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 105 pdevinfo[0].res = &adata->res[0];
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 106 pdevinfo[0].data = &irqflags;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 107 pdevinfo[0].size_data = sizeof(irqflags);
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 108
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 109 pdevinfo[1].name = "acp3x_i2s_playcap";
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 110 pdevinfo[1].id = 0;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 111 pdevinfo[1].parent = &pci->dev;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 112 pdevinfo[1].num_res = 1;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 113 pdevinfo[1].res = &adata->res[1];
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 114
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 115 pdevinfo[2].name = "acp3x_i2s_playcap";
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 116 pdevinfo[2].id = 1;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 117 pdevinfo[2].parent = &pci->dev;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 118 pdevinfo[2].num_res = 1;
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 119 pdevinfo[2].res = &adata->res[2];
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 120 for (i = 0; i < ACP3x_DEVS ; i++) {
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 121 adata->pdev[i] =
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 122 platform_device_register_full(&pdevinfo[i]);
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 123 if (IS_ERR(adata->pdev[i])) {
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 124 dev_err(&pci->dev, "cannot register %s device\n",
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 125 pdevinfo[i].name);
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 126 ret = PTR_ERR(adata->pdev[i]);
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 127 goto unmap_mmio;
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 128 }
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 129 }
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 130 break;
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 131 default:
> 00347e4ea8ca4c Colin Ian King 2018-11-16 132 dev_err(&pci->dev, "Invalid ACP audio mode : %d\n", val);
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 133 ret = -ENODEV;
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 134 goto unmap_mmio;
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 135 }
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 136 return 0;
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 137
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 138 unmap_mmio:
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 139 pci_disable_msi(pci);
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 140 for (i = 0 ; i < ACP3x_DEVS ; i++)
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 141 platform_device_unregister(adata->pdev[i]);
> 79701559637a30 Ravulapati Vishnu vardhan rao 2019-11-13 @142 kfree(adata->res);
> 7894a7e7ea3de6 Vijendar Mukunda 2018-11-12 143 iounmap(adata->acp3x_base);
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 144 release_regions:
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 145 pci_release_regions(pci);
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 146 disable_pci:
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 147 pci_disable_device(pci);
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 148
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 149 return ret;
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 150 }
> e30d9128def6ca Maruthi Srinivas Bayyavarapu 2018-11-12 151
>
> ---
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