6.6-stable review patch. If anyone has any objections, please let me know.
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From: Ilpo Järvinen ilpo.jarvinen@linux.intel.com
commit 3ec8ebd8a5b782d56347ae884de880af26f93996 upstream.
gpu_get_node_map() uses pci_read_config_dword() that returns PCIBIOS_* codes. The return code is then returned all the way into the module init function amd64_edac_init() that returns it as is. The module init functions, however, should return normal errnos.
Convert PCIBIOS_* returns code using pcibios_err_to_errno() into normal errno before returning it from gpu_get_node_map().
For consistency, convert also the other similar cases which return PCIBIOS_* codes even if they do not have any bugs at the moment.
Fixes: 4251566ebc1c ("EDAC/amd64: Cache and use GPU node map") Signed-off-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com Signed-off-by: Borislav Petkov (AMD) bp@alien8.de Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20240527132236.13875-1-ilpo.jarvinen@linux.intel.c... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/edac/amd64_edac.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
--- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -80,7 +80,7 @@ int __amd64_read_pci_cfg_dword(struct pc amd64_warn("%s: error reading F%dx%03x.\n", func, PCI_FUNC(pdev->devfn), offset);
- return err; + return pcibios_err_to_errno(err); }
int __amd64_write_pci_cfg_dword(struct pci_dev *pdev, int offset, @@ -93,7 +93,7 @@ int __amd64_write_pci_cfg_dword(struct p amd64_warn("%s: error writing to F%dx%03x.\n", func, PCI_FUNC(pdev->devfn), offset);
- return err; + return pcibios_err_to_errno(err); }
/* @@ -1016,8 +1016,10 @@ static int gpu_get_node_map(void) }
ret = pci_read_config_dword(pdev, REG_LOCAL_NODE_TYPE_MAP, &tmp); - if (ret) + if (ret) { + ret = pcibios_err_to_errno(ret); goto out; + }
gpu_node_map.node_count = FIELD_GET(LNTM_NODE_COUNT, tmp); gpu_node_map.base_node_id = FIELD_GET(LNTM_BASE_NODE_ID, tmp);