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platform/x86: amd-pmc: put device on error paths 

Put the PCI device rdev on error paths to fix potential reference count
leaks.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Link: https://lore.kernel.org/r/20210121045005.73342-1-bianpan2016@163.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Pan Bian 2021-01-20 20:50:05 -08:00 committed by Hans de Goede
parent eabe533904
commit 745ed17a04
1 changed files with 11 additions and 3 deletions
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14
drivers/platform/x86/amd-pmc.c
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@ -210,31 +210,39 @@ static int amd_pmc_probe(struct platform_device *pdev)
dev->dev = &pdev->dev;
rdev = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0, 0));
if (!rdev || !pci_match_id(pmc_pci_ids, rdev))
if (!rdev || !pci_match_id(pmc_pci_ids, rdev)) {
pci_dev_put(rdev);
return -ENODEV;
}
dev->cpu_id = rdev->device;
err = pci_write_config_dword(rdev, AMD_PMC_SMU_INDEX_ADDRESS, AMD_PMC_BASE_ADDR_LO);
if (err) {
dev_err(dev->dev, "error writing to 0x%x\n", AMD_PMC_SMU_INDEX_ADDRESS);
pci_dev_put(rdev);
return pcibios_err_to_errno(err);
}
err = pci_read_config_dword(rdev, AMD_PMC_SMU_INDEX_DATA, &val);
if (err)
if (err) {
pci_dev_put(rdev);
return pcibios_err_to_errno(err);
}
base_addr_lo = val & AMD_PMC_BASE_ADDR_HI_MASK;
err = pci_write_config_dword(rdev, AMD_PMC_SMU_INDEX_ADDRESS, AMD_PMC_BASE_ADDR_HI);
if (err) {
dev_err(dev->dev, "error writing to 0x%x\n", AMD_PMC_SMU_INDEX_ADDRESS);
pci_dev_put(rdev);
return pcibios_err_to_errno(err);
}
err = pci_read_config_dword(rdev, AMD_PMC_SMU_INDEX_DATA, &val);
if (err)
if (err) {
pci_dev_put(rdev);
return pcibios_err_to_errno(err);
}
base_addr_hi = val & AMD_PMC_BASE_ADDR_LO_MASK;
pci_dev_put(rdev);