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ACPICA: Add error checks to prevent faults

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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>
This commit is contained in:
Bob Moore 2008-04-10 19:06:39 +04:00 committed by Len Brown
parent 98af37fba9
commit d8841647de
2 changed files with 16 additions and 2 deletions
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12
drivers/acpi/executer/exstore.c
View File

@ -209,8 +209,16 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
object, level + 4, 0);
}
} else if (source_desc->reference.node) {
acpi_ex_do_debug_object((source_desc->reference.node)->
object, level + 4, 0);
if (ACPI_GET_DESCRIPTOR_TYPE
(source_desc->reference.node) !=
ACPI_DESC_TYPE_NAMED) {
ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
" %p - Not a valid namespace node\n"));
} else {
acpi_ex_do_debug_object((source_desc->reference.
node)->object,
level + 4, 0);
}
}
break;

6
drivers/acpi/namespace/nsnames.c
View File

@ -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);
}