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@intel.com To: kbuild@lists.01.org Cc: Julia Lawall julia.lawall@lip6.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@amd.com References: 1573629249-13272-2-git-send-email-Vishnuvardhanrao.Ravulapati@amd.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-... 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@intel.com Reported-by: Julia Lawall julia.lawall@lip6.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/79701559637a30a0708febfd5119ad05128b... 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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