ACPI / TPM: match node name instead of full path when searching for TPM device

When searching ACPI object for TPM device, it should match current
ACPI object name instead of the full path.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/char/tpm/tpm_ppi.c b/drivers/char/tpm/tpm_ppi.c
index e1f3337a0cf9f7d7fa223a86e84282765d915108..1e9cc11ac76afb1ed2cfd4930fac5737ac309122 100644 (file)
--- a/drivers/char/tpm/tpm_ppi.c
+++ b/drivers/char/tpm/tpm_ppi.c
@@ -30,7 +30,7 @@ static acpi_status ppi_callback(acpi_handle handle, u32 level, void *context,
        acpi_status status = AE_OK;
        struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 
-       if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer))) {
+       if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer))) {
                if (strstr(buffer.pointer, context) != NULL) {
                        *return_value = handle;
                        status = AE_CTRL_TERMINATE;