diff options
Diffstat (limited to 'drivers/acpi/namespace/nssearch.c')
| -rw-r--r-- | drivers/acpi/namespace/nssearch.c | 50 |
1 files changed, 30 insertions, 20 deletions
diff --git a/drivers/acpi/namespace/nssearch.c b/drivers/acpi/namespace/nssearch.c index c929f45071c0e..51adec5a23d6c 100644 --- a/drivers/acpi/namespace/nssearch.c +++ b/drivers/acpi/namespace/nssearch.c @@ -128,9 +128,8 @@ acpi_ns_search_node(u32 target_name, next_node->object); } - /* - * Found matching entry. - */ + /* Found matching entry */ + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "Name [%4.4s] (%s) %p found in scope [%4.4s] %p\n", ACPI_CAST_PTR(char, &target_name), @@ -248,10 +247,8 @@ acpi_ns_search_parent_tree(u32 target_name, return_ACPI_STATUS(status); } - /* - * Not found here, go up another level - * (until we reach the root) - */ + /* Not found here, go up another level (until we reach the root) */ + parent_node = acpi_ns_get_parent_node(parent_node); } @@ -307,12 +304,29 @@ acpi_ns_search_and_enter(u32 target_name, return_ACPI_STATUS(AE_BAD_PARAMETER); } - /* Name must consist of printable characters */ - + /* + * Name must consist of valid ACPI characters. We will repair the name if + * necessary because we don't want to abort because of this, but we want + * all namespace names to be printable. A warning message is appropriate. + * + * This issue came up because there are in fact machines that exhibit + * this problem, and we want to be able to enable ACPI support for them, + * even though there are a few bad names. + */ if (!acpi_ut_valid_acpi_name(target_name)) { - ACPI_ERROR((AE_INFO, "Bad character in ACPI Name: %X", - target_name)); - return_ACPI_STATUS(AE_BAD_CHARACTER); + target_name = acpi_ut_repair_name(target_name); + + /* Report warning only if in strict mode or debug mode */ + + if (!acpi_gbl_enable_interpreter_slack) { + ACPI_WARNING((AE_INFO, + "Found bad character(s) in name, repaired: [%4.4s]\n", + ACPI_CAST_PTR(char, &target_name))); + } else { + ACPI_DEBUG_PRINT((ACPI_DB_WARN, + "Found bad character(s) in name, repaired: [%4.4s]\n", + ACPI_CAST_PTR(char, &target_name))); + } } /* Try to find the name in the namespace level specified by the caller */ @@ -328,10 +342,8 @@ acpi_ns_search_and_enter(u32 target_name, status = AE_ALREADY_EXISTS; } - /* - * Either found it or there was an error - * -- finished either way - */ + /* Either found it or there was an error: finished either way */ + return_ACPI_STATUS(status); } @@ -357,9 +369,8 @@ acpi_ns_search_and_enter(u32 target_name, } } - /* - * In execute mode, just search, never add names. Exit now. - */ + /* In execute mode, just search, never add names. Exit now */ + if (interpreter_mode == ACPI_IMODE_EXECUTE) { ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%4.4s Not found in %p [Not adding]\n", @@ -379,6 +390,5 @@ acpi_ns_search_and_enter(u32 target_name, acpi_ns_install_node(walk_state, node, new_node, type); *return_node = new_node; - return_ACPI_STATUS(AE_OK); } |