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drm/amdgpu: fix multiple memory leaks in acp_hw_init
In acp_hw_init there are some allocations that needs to be released in case of failure: 1- adev->acp.acp_genpd should be released if any allocation attemp for adev->acp.acp_cell, adev->acp.acp_res or i2s_pdata fails. 2- all of those allocations should be released if mfd_add_hotplug_devices or pm_genpd_add_device fail. 3- Release is needed in case of time out values expire. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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815fb4c9d7
commit
57be09c6e8
@ -189,7 +189,7 @@ static int acp_hw_init(void *handle)
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u32 val = 0;
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u32 count = 0;
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struct device *dev;
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struct i2s_platform_data *i2s_pdata;
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struct i2s_platform_data *i2s_pdata = NULL;
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struct amdgpu_device *adev = (struct amdgpu_device *)handle;
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@ -231,20 +231,21 @@ static int acp_hw_init(void *handle)
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adev->acp.acp_cell = kcalloc(ACP_DEVS, sizeof(struct mfd_cell),
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GFP_KERNEL);
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if (adev->acp.acp_cell == NULL)
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return -ENOMEM;
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if (adev->acp.acp_cell == NULL) {
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r = -ENOMEM;
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goto failure;
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}
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adev->acp.acp_res = kcalloc(5, sizeof(struct resource), GFP_KERNEL);
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if (adev->acp.acp_res == NULL) {
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kfree(adev->acp.acp_cell);
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return -ENOMEM;
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r = -ENOMEM;
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goto failure;
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}
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i2s_pdata = kcalloc(3, sizeof(struct i2s_platform_data), GFP_KERNEL);
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if (i2s_pdata == NULL) {
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kfree(adev->acp.acp_res);
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kfree(adev->acp.acp_cell);
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return -ENOMEM;
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r = -ENOMEM;
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goto failure;
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}
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switch (adev->asic_type) {
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@ -341,14 +342,14 @@ static int acp_hw_init(void *handle)
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r = mfd_add_hotplug_devices(adev->acp.parent, adev->acp.acp_cell,
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ACP_DEVS);
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if (r)
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return r;
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goto failure;
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for (i = 0; i < ACP_DEVS ; i++) {
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dev = get_mfd_cell_dev(adev->acp.acp_cell[i].name, i);
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r = pm_genpd_add_device(&adev->acp.acp_genpd->gpd, dev);
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if (r) {
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dev_err(dev, "Failed to add dev to genpd\n");
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return r;
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goto failure;
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}
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}
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@ -367,7 +368,8 @@ static int acp_hw_init(void *handle)
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break;
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if (--count == 0) {
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dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
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return -ETIMEDOUT;
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r = -ETIMEDOUT;
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goto failure;
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}
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udelay(100);
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}
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@ -384,7 +386,8 @@ static int acp_hw_init(void *handle)
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break;
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if (--count == 0) {
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dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
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return -ETIMEDOUT;
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r = -ETIMEDOUT;
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goto failure;
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}
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udelay(100);
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}
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@ -393,6 +396,13 @@ static int acp_hw_init(void *handle)
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val &= ~ACP_SOFT_RESET__SoftResetAud_MASK;
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cgs_write_register(adev->acp.cgs_device, mmACP_SOFT_RESET, val);
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return 0;
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failure:
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kfree(i2s_pdata);
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kfree(adev->acp.acp_res);
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kfree(adev->acp.acp_cell);
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kfree(adev->acp.acp_genpd);
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return r;
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}
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/**
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