ACPICA: Change exception code for LoadTable operator.

For the case where one of the input strings is too long,
change the returned exception code from AE_BAD_PARAMETER to
AE_AML_STRING_LIMIT.

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>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c
index d0cc2a40edfb..f214dbfc4047 100644
--- a/drivers/acpi/acpica/exconfig.c
+++ b/drivers/acpi/acpica/exconfig.c
@@ -48,6 +48,7 @@
 #include "actables.h"
 #include "acdispat.h"
 #include "acevents.h"
+#include "amlcode.h"
 
 #define _COMPONENT          ACPI_EXECUTER
 ACPI_MODULE_NAME("exconfig")
@@ -166,7 +167,7 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
         if ((operand[0]->string.length > ACPI_NAME_SIZE) ||
             (operand[1]->string.length > ACPI_OEM_ID_SIZE) ||
             (operand[2]->string.length > ACPI_OEM_TABLE_ID_SIZE)) {
-                return_ACPI_STATUS(AE_BAD_PARAMETER);
+                return_ACPI_STATUS(AE_AML_STRING_LIMIT);
         }
 
         /* Find the ACPI table in the RSDT/XSDT */
@@ -213,8 +214,8 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
         /* parameter_path (optional parameter) */
 
         if (operand[4]->string.length > 0) {
-                if ((operand[4]->string.pointer[0] != '\\') &&
-                    (operand[4]->string.pointer[0] != '^')) {
+                if ((operand[4]->string.pointer[0] != AML_ROOT_PREFIX) &&
+                    (operand[4]->string.pointer[0] != AML_PARENT_PREFIX)) {
                         /*
                          * Path is not absolute, so it will be relative to the node
                          * referenced by the root_path_string (or the NS root if omitted)