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Diffstat (limited to 'drivers/acpi/acpica/utpredef.c')
-rw-r--r--drivers/acpi/acpica/utpredef.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/acpi/acpica/utpredef.c b/drivers/acpi/acpica/utpredef.c
index 29459479148f..2b1ce4cd3207 100644
--- a/drivers/acpi/acpica/utpredef.c
+++ b/drivers/acpi/acpica/utpredef.c
@@ -147,6 +147,11 @@ void acpi_ut_get_expected_return_types(char *buffer, u32 expected_btypes)
u32 i;
u32 j;
+ if (!expected_btypes) {
+ ACPI_STRCPY(buffer, "NONE");
+ return;
+ }
+
j = 1;
buffer[0] = 0;
this_rtype = ACPI_RTYPE_INTEGER;
@@ -328,9 +333,7 @@ static u32 acpi_ut_get_argument_types(char *buffer, u16 argument_types)
/* First field in the types list is the count of args to follow */
- arg_count = (argument_types & METHOD_ARG_MASK);
- argument_types >>= METHOD_ARG_BIT_WIDTH;
-
+ arg_count = METHOD_GET_ARG_COUNT(argument_types);
if (arg_count > METHOD_PREDEF_ARGS_MAX) {
printf("**** Invalid argument count (%u) "
"in predefined info structure\n", arg_count);
@@ -340,7 +343,8 @@ static u32 acpi_ut_get_argument_types(char *buffer, u16 argument_types)
/* Get each argument from the list, convert to ascii, store to buffer */
for (i = 0; i < arg_count; i++) {
- this_argument_type = (argument_types & METHOD_ARG_MASK);
+ this_argument_type = METHOD_GET_NEXT_TYPE(argument_types);
+
if (!this_argument_type
|| (this_argument_type > METHOD_MAX_ARG_TYPE)) {
printf("**** Invalid argument type (%u) "
@@ -351,10 +355,6 @@ static u32 acpi_ut_get_argument_types(char *buffer, u16 argument_types)
strcat(buffer,
ut_external_type_names[this_argument_type] + sub_index);
-
- /* Shift to next argument type field */
-
- argument_types >>= METHOD_ARG_BIT_WIDTH;
sub_index = 0;
}
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