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-rw-r--r--arch/x86/kernel/amd_nb.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index 5bf5f9fc5753..027a8c7a2c9e 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -95,6 +95,7 @@ static const struct pci_device_id amd_nb_misc_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_19H_M78H_DF_F3) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_1AH_M00H_DF_F3) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_1AH_M20H_DF_F3) },
+ { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_1AH_M70H_DF_F3) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_MI200_DF_F3) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_MI300_DF_F3) },
{}
@@ -214,7 +215,14 @@ out:
int amd_smn_read(u16 node, u32 address, u32 *value)
{
- return __amd_smn_rw(node, address, value, false);
+ int err = __amd_smn_rw(node, address, value, false);
+
+ if (PCI_POSSIBLE_ERROR(*value)) {
+ err = -ENODEV;
+ *value = 0;
+ }
+
+ return err;
}
EXPORT_SYMBOL_GPL(amd_smn_read);