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| author | Bob Moore <robert.moore@intel.com> | 2017-08-03 14:27:22 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-08-03 23:34:17 +0200 |
| commit | a62a7117d91ca83d319566cbe16039f4e9f413c2 (patch) | |
| tree | 23be92692a4e0191972530325761627ca526bb73 /drivers/acpi/acpica/nsnames.c | |
| parent | 7ab58197d84c29cf20162eaaed1eb2cc94fc73a7 (diff) | |
| download | lwn-a62a7117d91ca83d319566cbe16039f4e9f413c2.tar.gz lwn-a62a7117d91ca83d319566cbe16039f4e9f413c2.zip | |
ACPICA: Implement deferred resolution of reference package elements
ACPICA commit 0c08790c56fdf0dc081ae869495a09d8c4230854
This change defers the resolution of package elements that
are named references until after the entire namespace has been
loaded from the definition block. This allows such references
to be in fact forward references for both module level code
and control methods.
Link: https://github.com/acpica/acpica/commit/0c08790c
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/nsnames.c')
| -rw-r--r-- | drivers/acpi/acpica/nsnames.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/nsnames.c b/drivers/acpi/acpica/nsnames.c index aa16aeaa8937..a410760a0308 100644 --- a/drivers/acpi/acpica/nsnames.c +++ b/drivers/acpi/acpica/nsnames.c @@ -89,7 +89,14 @@ acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node) { acpi_size size; - ACPI_FUNCTION_ENTRY(); + /* Validate the Node */ + + if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) { + ACPI_ERROR((AE_INFO, + "Invalid/cached reference target node: %p, descriptor type %d", + node, ACPI_GET_DESCRIPTOR_TYPE(node))); + return (0); + } size = acpi_ns_build_normalized_path(node, NULL, 0, FALSE); return (size); |