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ACPICA: AML Debug Object: Don't ignore output of zero-length strings

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The implementation previously ignored null strings (""), but
these could be important, especially for debug.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Bob Moore 2018-03-14 16:13:02 -07:00 committed by Rafael J. Wysocki
parent 1c29c372b2
commit 8167724121
1 changed files with 3 additions and 4 deletions
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7
drivers/acpi/acpica/exdebug.c
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@ -88,14 +88,13 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
return_VOID;
}
/* Null string or newline -- don't emit the line header */
/* Newline -- don't emit the line header */
if (source_desc &&
(ACPI_GET_DESCRIPTOR_TYPE(source_desc) == ACPI_DESC_TYPE_OPERAND) &&
(source_desc->common.type == ACPI_TYPE_STRING)) {
if ((source_desc->string.length == 0) ||
((source_desc->string.length == 1) &&
(*source_desc->string.pointer == '\n'))) {
if ((source_desc->string.length == 1) &&
(*source_desc->string.pointer == '\n')) {
acpi_os_printf("\n");
return_VOID;
}