diff options
| author | Dave Jones <davej@redhat.com> | 2006-06-29 16:01:54 -0400 |
|---|---|---|
| committer | Dave Jones <davej@redhat.com> | 2006-06-29 16:01:54 -0400 |
| commit | 55b4d6a52195a8f277ffddf755ddaff359878f41 (patch) | |
| tree | 06a3183a562f8da4688f65023f7a18dcad702956 /drivers/acpi/parser/pstree.c | |
| parent | adf8a287150667feb5747f8beade62acacc17d4e (diff) | |
| parent | 1f1332f727c3229eb2166a83fec5d3de6a73dce2 (diff) | |
Merge ../linus
Conflicts:
drivers/char/agp/Kconfig
Diffstat (limited to 'drivers/acpi/parser/pstree.c')
| -rw-r--r-- | drivers/acpi/parser/pstree.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/acpi/parser/pstree.c b/drivers/acpi/parser/pstree.c index dd6f16726fc..0015717ef09 100644 --- a/drivers/acpi/parser/pstree.c +++ b/drivers/acpi/parser/pstree.c @@ -77,6 +77,7 @@ union acpi_parse_object *acpi_ps_get_arg(union acpi_parse_object *op, u32 argn) op_info = acpi_ps_get_opcode_info(op->common.aml_opcode); if (op_info->class == AML_CLASS_UNKNOWN) { + /* Invalid opcode or ASCII character */ return (NULL); @@ -85,6 +86,7 @@ union acpi_parse_object *acpi_ps_get_arg(union acpi_parse_object *op, u32 argn) /* Check if this opcode requires argument sub-objects */ if (!(op_info->flags & AML_HAS_ARGS)) { + /* Has no linked argument objects */ return (NULL); @@ -130,6 +132,7 @@ acpi_ps_append_arg(union acpi_parse_object *op, union acpi_parse_object *arg) op_info = acpi_ps_get_opcode_info(op->common.aml_opcode); if (op_info->class == AML_CLASS_UNKNOWN) { + /* Invalid opcode */ ACPI_ERROR((AE_INFO, "Invalid AML Opcode: 0x%2.2X", @@ -140,6 +143,7 @@ acpi_ps_append_arg(union acpi_parse_object *op, union acpi_parse_object *arg) /* Check if this opcode requires argument sub-objects */ if (!(op_info->flags & AML_HAS_ARGS)) { + /* Has no linked argument objects */ return; @@ -148,6 +152,7 @@ acpi_ps_append_arg(union acpi_parse_object *op, union acpi_parse_object *arg) /* Append the argument to the linked argument list */ if (op->common.value.arg) { + /* Append to existing argument list */ prev_arg = op->common.value.arg; @@ -222,12 +227,14 @@ union acpi_parse_object *acpi_ps_get_depth_next(union acpi_parse_object *origin, } if (arg == origin) { + /* Reached parent of origin, end search */ return (NULL); } if (parent->common.next) { + /* Found sibling of parent */ return (parent->common.next); @@ -299,5 +306,4 @@ union acpi_parse_object *acpi_ps_get_child(union acpi_parse_object *op) return (child); } #endif - #endif /* ACPI_FUTURE_USAGE */ |