diff options
| author | Pan Bian <bianpan2016@163.com> | 2021-01-20 20:50:05 -0800 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2021-02-02 19:33:44 +0100 |
| commit | 745ed17a04f966406c8c27c8f992544336c06013 (patch) | |
| tree | 8a895e5e2f981e1e20f841327c11971dbbfa0f36 /drivers/platform/x86/amd-pmc.c | |
| parent | eabe533904cbcb6c7df530fd807cf2a3c3567d35 (diff) | |
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>
Diffstat (limited to 'drivers/platform/x86/amd-pmc.c')
| -rw-r--r-- | drivers/platform/x86/amd-pmc.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/platform/x86/amd-pmc.c b/drivers/platform/x86/amd-pmc.c index ef8342572463..b9da58ee9b1e 100644 --- a/drivers/platform/x86/amd-pmc.c +++ b/drivers/platform/x86/amd-pmc.c @@ -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); |