Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c
index 78f9de2..10f32b6 100644
--- a/drivers/acpi/acpica/dsopcode.c
+++ b/drivers/acpi/acpica/dsopcode.c
@@ -3,7 +3,7 @@
*
* Module Name: dsopcode - Dispatcher support for regions and fields
*
- * Copyright (C) 2000 - 2018, Intel Corp.
+ * Copyright (C) 2000 - 2019, Intel Corp.
*
*****************************************************************************/
@@ -130,8 +130,8 @@
/* Must have a valid (>0) bit count */
if (bit_count == 0) {
- ACPI_ERROR((AE_INFO,
- "Attempt to CreateField of length zero"));
+ ACPI_BIOS_ERROR((AE_INFO,
+ "Attempt to CreateField of length zero"));
status = AE_AML_OPERAND_VALUE;
goto cleanup;
}
@@ -194,12 +194,13 @@
/* Entire field must fit within the current length of the buffer */
if ((bit_offset + bit_count) > (8 * (u32)buffer_desc->buffer.length)) {
- ACPI_ERROR((AE_INFO,
- "Field [%4.4s] at bit offset/length %u/%u "
- "exceeds size of target Buffer (%u bits)",
- acpi_ut_get_node_name(result_desc), bit_offset,
- bit_count, 8 * (u32)buffer_desc->buffer.length));
status = AE_AML_BUFFER_LIMIT;
+ ACPI_BIOS_EXCEPTION((AE_INFO, status,
+ "Field [%4.4s] at bit offset/length %u/%u "
+ "exceeds size of target Buffer (%u bits)",
+ acpi_ut_get_node_name(result_desc),
+ bit_offset, bit_count,
+ 8 * (u32)buffer_desc->buffer.length));
goto cleanup;
}
@@ -355,6 +356,7 @@
union acpi_operand_object *operand_desc;
struct acpi_namespace_node *node;
union acpi_parse_object *next_op;
+ acpi_adr_space_type space_id;
ACPI_FUNCTION_TRACE_PTR(ds_eval_region_operands, op);
@@ -367,6 +369,7 @@
/* next_op points to the op that holds the space_ID */
next_op = op->common.value.arg;
+ space_id = (acpi_adr_space_type)next_op->common.value.integer;
/* next_op points to address op */
@@ -402,6 +405,15 @@
obj_desc->region.length = (u32) operand_desc->integer.value;
acpi_ut_remove_reference(operand_desc);
+ /* A zero-length operation region is unusable. Just warn */
+
+ if (!obj_desc->region.length
+ && (space_id < ACPI_NUM_PREDEFINED_REGIONS)) {
+ ACPI_WARNING((AE_INFO,
+ "Operation Region [%4.4s] has zero length (SpaceId %X)",
+ node->name.ascii, space_id));
+ }
+
/*
* Get the address and save it
* (at top of stack - 1)