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| author |   Bob Moore <robert.moore@intel.com> | 2008-04-10 19:06:39 +0400 |
|---|---|---|
| committer |   Len Brown <len.brown@intel.com> | 2008-04-22 14:29:26 -0400 |
| commit | d8841647de7c4aa3f3ff5b8b8c4a3f042e848ff0 (patch) | |
| tree | c13984a05b5e742e86f07a762162d634404ec8ef /drivers/acpi/namespace | |
| parent | ACPICA: Add a table checksum verify for Load operator (diff) | |
| download | linux-dev-d8841647de7c4aa3f3ff5b8b8c4a3f042e848ff0.tar.xz linux-dev-d8841647de7c4aa3f3ff5b8b8c4a3f042e848ff0.zip | |
ACPICA: Add error checks to prevent faults
Added additional error checking to prevent run-time faults.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/namespace')
| -rw-r--r-- | drivers/acpi/namespace/nsnames.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/acpi/namespace/nsnames.c b/drivers/acpi/namespace/nsnames.c index cbd94af08cc5..e14a1412656b 100644 --- a/drivers/acpi/namespace/nsnames.c +++ b/drivers/acpi/namespace/nsnames.c @@ -180,6 +180,12 @@ acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node) next_node = node; while (next_node && (next_node != acpi_gbl_root_node)) { + if (ACPI_GET_DESCRIPTOR_TYPE(next_node) != ACPI_DESC_TYPE_NAMED) { + ACPI_ERROR((AE_INFO, + "Invalid NS Node (%X) while traversing path", + next_node)); + return 0; + } size += ACPI_PATH_SEGMENT_LENGTH; next_node = acpi_ns_get_parent_node(next_node); } |