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-rw-r--r--arch/x86/kernel/amd_node.c14
1 files changed, 5 insertions, 9 deletions
diff --git a/arch/x86/kernel/amd_node.c b/arch/x86/kernel/amd_node.c
index 95e5ca0acc90..0cca541e18d5 100644
--- a/arch/x86/kernel/amd_node.c
+++ b/arch/x86/kernel/amd_node.c
@@ -136,28 +136,24 @@ static int __amd_smn_rw(u16 node, u32 address, u32 *value, bool write)
int err = -ENODEV;
if (node >= amd_nb_num())
- goto out;
+ return err;
root = node_to_amd_nb(node)->root;
if (!root)
- goto out;
+ return err;
- mutex_lock(&smn_mutex);
+ guard(mutex)(&smn_mutex);
err = pci_write_config_dword(root, 0x60, address);
if (err) {
pr_warn("Error programming SMN address 0x%x.\n", address);
- goto out_unlock;
+ return pcibios_err_to_errno(err);
}
err = (write ? pci_write_config_dword(root, 0x64, *value)
: pci_read_config_dword(root, 0x64, value));
-out_unlock:
- mutex_unlock(&smn_mutex);
-
-out:
- return err;
+ return pcibios_err_to_errno(err);
}
int __must_check amd_smn_read(u16 node, u32 address, u32 *value)