[ACPI] ACPICA 20060210

Removed a couple of extraneous ACPI_ERROR messages that
appeared during normal execution. These became apparent
after the conversion from ACPI_DEBUG_PRINT.

Fixed a problem where the CreateField operator could hang
if the BitIndex or NumBits parameter referred to a named
object. From Valery Podrezov.
http://bugzilla.kernel.org/show_bug.cgi?id=5359

Fixed a problem where a DeRefOf operation on a buffer
object incorrectly failed with an exception. This also
fixes a couple of related RefOf and DeRefOf issues.
From Valery Podrezov.
http://bugzilla.kernel.org/show_bug.cgi?id=5360
http://bugzilla.kernel.org/show_bug.cgi?id=5387
http://bugzilla.kernel.org/show_bug.cgi?id=5392

Fixed a problem where the AE_BUFFER_LIMIT exception was
returned instead of AE_STRING_LIMIT on an out-of-bounds
Index() operation. From Valery Podrezov.
http://bugzilla.kernel.org/show_bug.cgi?id=5480

Implemented a memory cleanup at the end of the execution
of each iteration of an AML While() loop, preventing the
accumulation of outstanding objects. From Valery Podrezov.
http://bugzilla.kernel.org/show_bug.cgi?id=5427

Eliminated a chunk of duplicate code in the object
resolution code. From Valery Podrezov.
http://bugzilla.kernel.org/show_bug.cgi?id=5336

Fixed several warnings during the 64-bit code generation.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

21 files changed, 147 insertions, 69 deletions

diff --git a/drivers/acpi/executer/exconfig.c b/drivers/acpi/executer/exconfig.c
index a29782f..864530f 100644
--- a/drivers/acpi/executer/exconfig.c
+++ b/drivers/acpi/executer/exconfig.c
@@ -110,6 +110,7 @@ acpi_ex_add_table(struct acpi_table_header *table,
 
 	if (ACPI_FAILURE(status)) {
 		if (status == AE_ALREADY_EXISTS) {
+
 			/* Table already exists, just return the handle */
 
 			return_ACPI_STATUS(AE_OK);
@@ -121,6 +122,7 @@ acpi_ex_add_table(struct acpi_table_header *table,
 
 	status = acpi_ns_load_table(table_info.installed_desc, parent_node);
 	if (ACPI_FAILURE(status)) {
+
 		/* Uninstall table on error */
 
 		(void)acpi_tb_uninstall_table(table_info.installed_desc);
@@ -169,6 +171,7 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
 	 */
 	status = acpi_tb_match_signature(operand[0]->string.pointer, NULL);
 	if (status == AE_OK) {
+
 		/* Signature matched -- don't allow override */
 
 		return_ACPI_STATUS(AE_ALREADY_EXISTS);
@@ -252,6 +255,7 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
 	/* Parameter Data (optional) */
 
 	if (parameter_node) {
+
 		/* Store the parameter data into the optional parameter object */
 
 		status = acpi_ex_store(operand[5],
@@ -424,6 +428,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 
 	status = acpi_ex_add_table(table_ptr, acpi_gbl_root_node, &ddb_handle);
 	if (ACPI_FAILURE(status)) {
+
 		/* On error, table_ptr was deallocated above */
 
 		return_ACPI_STATUS(status);
diff --git a/drivers/acpi/executer/exconvrt.c b/drivers/acpi/executer/exconvrt.c
index e6d52e1..a2c93c9 100644
--- a/drivers/acpi/executer/exconvrt.c
+++ b/drivers/acpi/executer/exconvrt.c
@@ -319,6 +319,7 @@ acpi_ex_convert_to_ascii(acpi_integer integer,
 		remainder = 0;
 
 		for (i = decimal_length; i > 0; i--) {
+
 			/* Divide by nth factor of 10 */
 
 			digit = integer;
@@ -346,6 +347,7 @@ acpi_ex_convert_to_ascii(acpi_integer integer,
 
 		hex_length = (acpi_native_uint) ACPI_MUL_2(data_width);
 		for (i = 0, j = (hex_length - 1); i < hex_length; i++, j--) {
+
 			/* Get one hex digit, most significant digits first */
 
 			string[k] =
diff --git a/drivers/acpi/executer/exdump.c b/drivers/acpi/executer/exdump.c
index a7cca8d..0a53d31 100644
--- a/drivers/acpi/executer/exdump.c
+++ b/drivers/acpi/executer/exdump.c
@@ -463,6 +463,7 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth)
 	}
 
 	if (!obj_desc) {
+
 		/* This could be a null element of a package */
 
 		ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Null Object Descriptor\n"));
@@ -532,6 +533,7 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth)
 				       obj_desc->reference.offset);
 
 			if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
+
 				/* Value is an Integer */
 
 				acpi_os_printf(" value is [%8.8X%8.8x]",
diff --git a/drivers/acpi/executer/exfield.c b/drivers/acpi/executer/exfield.c
index e259201..215783a 100644
--- a/drivers/acpi/executer/exfield.c
+++ b/drivers/acpi/executer/exfield.c
@@ -142,6 +142,7 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state,
 	length =
 	    (acpi_size) ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->field.bit_length);
 	if (length > acpi_gbl_integer_byte_width) {
+
 		/* Field is too large for an Integer, create a Buffer instead */
 
 		buffer_desc = acpi_ut_create_buffer_object(length);
@@ -329,6 +330,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
 	    ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.bit_length);
 
 	if (length < required_length) {
+
 		/* We need to create a new buffer */
 
 		new_buffer = ACPI_MEM_CALLOCATE(required_length);
diff --git a/drivers/acpi/executer/exfldio.c b/drivers/acpi/executer/exfldio.c
index bd1af35..d5a4b26 100644
--- a/drivers/acpi/executer/exfldio.c
+++ b/drivers/acpi/executer/exfldio.c
@@ -113,6 +113,7 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc,
 	}
 
 	if (rgn_desc->region.space_id == ACPI_ADR_SPACE_SMBUS) {
+
 		/* SMBus has a non-linear address space */
 
 		return_ACPI_STATUS(AE_OK);
@@ -491,6 +492,7 @@ acpi_ex_field_datum_io(union acpi_operand_object *obj_desc,
 				  value));
 
 		if (read_write == ACPI_READ) {
+
 			/* Read the datum from the data_register */
 
 			status =
@@ -568,6 +570,7 @@ acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc,
 	/* If the mask is all ones, we don't need to worry about the update rule */
 
 	if (mask != ACPI_INTEGER_MAX) {
+
 		/* Decode the update rule */
 
 		switch (obj_desc->common_field.
@@ -704,6 +707,7 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc,
 	/* Read the rest of the field */
 
 	for (i = 1; i < field_datum_count; i++) {
+
 		/* Get next input datum from the field */
 
 		field_offset += obj_desc->common_field.access_byte_width;
@@ -817,6 +821,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
 	/* Write the entire field */
 
 	for (i = 1; i < field_datum_count; i++) {
+
 		/* Write merged datum to the target field */
 
 		merged_datum &= mask;
diff --git a/drivers/acpi/executer/exmisc.c b/drivers/acpi/executer/exmisc.c
index 48c18d2..74f2c1a 100644
--- a/drivers/acpi/executer/exmisc.c
+++ b/drivers/acpi/executer/exmisc.c
@@ -649,6 +649,7 @@ acpi_ex_do_logical_op(u16 opcode,
 			/* Length and all bytes must be equal */
 
 			if ((length0 == length1) && (compare == 0)) {
+
 				/* Length and all bytes match ==> TRUE */
 
 				local_result = TRUE;
diff --git a/drivers/acpi/executer/exmutex.c b/drivers/acpi/executer/exmutex.c
index f843b22..eaee1de 100644
--- a/drivers/acpi/executer/exmutex.c
+++ b/drivers/acpi/executer/exmutex.c
@@ -173,6 +173,7 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc,
 	/* Support for multiple acquires by the owning thread */
 
 	if (obj_desc->mutex.owner_thread) {
+
 		/* Special case for Global Lock, allow all threads */
 
 		if ((obj_desc->mutex.owner_thread->thread_id ==
@@ -192,6 +193,7 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc,
 
 	status = acpi_ex_system_acquire_mutex(time_desc, obj_desc);
 	if (ACPI_FAILURE(status)) {
+
 		/* Includes failure from a timeout on time_desc */
 
 		return_ACPI_STATUS(status);
@@ -286,6 +288,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
 
 	obj_desc->mutex.acquisition_depth--;
 	if (obj_desc->mutex.acquisition_depth != 0) {
+
 		/* Just decrement the depth and return */
 
 		return_ACPI_STATUS(AE_OK);
diff --git a/drivers/acpi/executer/exnames.c b/drivers/acpi/executer/exnames.c
index 054fe5e..f9bc81c 100644
--- a/drivers/acpi/executer/exnames.c
+++ b/drivers/acpi/executer/exnames.c
@@ -85,6 +85,7 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs)
 	 * This may actually be somewhat longer than needed.
 	 */
 	if (prefix_count == ACPI_UINT32_MAX) {
+
 		/* Special case for root */
 
 		size_needed = 1 + (ACPI_NAME_SIZE * num_name_segs) + 2 + 1;
@@ -119,11 +120,13 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs)
 	/* Set up Dual or Multi prefixes if needed */
 
 	if (num_name_segs > 2) {
+
 		/* Set up multi prefixes   */
 
 		*temp_ptr++ = AML_MULTI_NAME_PREFIX_OP;
 		*temp_ptr++ = (char)num_name_segs;
 	} else if (2 == num_name_segs) {
+
 		/* Set up dual prefixes */
 
 		*temp_ptr++ = AML_DUAL_NAME_PREFIX;
@@ -184,6 +187,7 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string)
 	/* Valid name segment  */
 
 	if (index == 4) {
+
 		/* Found 4 valid characters */
 
 		char_buf[4] = '\0';
@@ -254,6 +258,7 @@ acpi_ex_get_name_string(acpi_object_type data_type,
 	if (ACPI_TYPE_LOCAL_REGION_FIELD == data_type ||
 	    ACPI_TYPE_LOCAL_BANK_FIELD == data_type ||
 	    ACPI_TYPE_LOCAL_INDEX_FIELD == data_type) {
+
 		/* Disallow prefixes for types associated with field_unit names */
 
 		name_string = acpi_ex_allocate_name_string(0, 1);
@@ -410,6 +415,7 @@ acpi_ex_get_name_string(acpi_object_type data_type,
 	}
 
 	if (AE_CTRL_PENDING == status && has_prefix) {
+
 		/* Ran out of segments after processing a prefix */
 
 		ACPI_ERROR((AE_INFO, "Malformed Name at %p", name_string));
diff --git a/drivers/acpi/executer/exoparg1.c b/drivers/acpi/executer/exoparg1.c
index 23d0823..4f3627e 100644
--- a/drivers/acpi/executer/exoparg1.c
+++ b/drivers/acpi/executer/exoparg1.c
@@ -342,6 +342,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
 			for (i = 0;
 			     (i < acpi_gbl_integer_nybble_width) && (digit > 0);
 			     i++) {
+
 				/* Get the least significant 4-bit BCD digit */
 
 				temp32 = ((u32) digit) & 0xF;
@@ -487,6 +488,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
 		status = acpi_ex_convert_to_string(operand[0], &return_desc,
 						   ACPI_EXPLICIT_CONVERT_DECIMAL);
 		if (return_desc == operand[0]) {
+
 			/* No conversion performed, add ref to handle return value */
 			acpi_ut_add_reference(return_desc);
 		}
@@ -497,6 +499,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
 		status = acpi_ex_convert_to_string(operand[0], &return_desc,
 						   ACPI_EXPLICIT_CONVERT_HEX);
 		if (return_desc == operand[0]) {
+
 			/* No conversion performed, add ref to handle return value */
 			acpi_ut_add_reference(return_desc);
 		}
@@ -506,6 +509,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
 
 		status = acpi_ex_convert_to_buffer(operand[0], &return_desc);
 		if (return_desc == operand[0]) {
+
 			/* No conversion performed, add ref to handle return value */
 			acpi_ut_add_reference(return_desc);
 		}
@@ -516,6 +520,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
 		status = acpi_ex_convert_to_integer(operand[0], &return_desc,
 						    ACPI_ANY_BASE);
 		if (return_desc == operand[0]) {
+
 			/* No conversion performed, add ref to handle return value */
 			acpi_ut_add_reference(return_desc);
 		}
@@ -541,6 +546,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
 	}
 
 	if (ACPI_SUCCESS(status)) {
+
 		/* Store the return value computed above into the target object */
 
 		status = acpi_ex_store(return_desc, operand[1], walk_state);
@@ -625,6 +631,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 		temp_desc = operand[0];
 		if (ACPI_GET_DESCRIPTOR_TYPE(temp_desc) ==
 		    ACPI_DESC_TYPE_OPERAND) {
+
 			/* Internal reference object - prevent deletion */
 
 			acpi_ut_add_reference(temp_desc);
@@ -777,8 +784,25 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 
 		/* Check for a method local or argument, or standalone String */
 
-		if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) !=
+		if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) ==
 		    ACPI_DESC_TYPE_NAMED) {
+			temp_desc =
+			    acpi_ns_get_attached_object((struct
+							 acpi_namespace_node *)
+							operand[0]);
+			if (temp_desc
+			    &&
+			    ((ACPI_GET_OBJECT_TYPE(temp_desc) ==
+			      ACPI_TYPE_STRING)
+			     || (ACPI_GET_OBJECT_TYPE(temp_desc) ==
+				 ACPI_TYPE_LOCAL_REFERENCE))) {
+				operand[0] = temp_desc;
+				acpi_ut_add_reference(temp_desc);
+			} else {
+				status = AE_AML_OPERAND_TYPE;
+				goto cleanup;
+			}
+		} else {
 			switch (ACPI_GET_OBJECT_TYPE(operand[0])) {
 			case ACPI_TYPE_LOCAL_REFERENCE:
 				/*
@@ -827,13 +851,24 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 				break;
 
 			case ACPI_TYPE_STRING:
+				break;
 
+			default:
+				status = AE_AML_OPERAND_TYPE;
+				goto cleanup;
+			}
+		}
+
+		if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) !=
+		    ACPI_DESC_TYPE_NAMED) {
+			if (ACPI_GET_OBJECT_TYPE(operand[0]) ==
+			    ACPI_TYPE_STRING) {
 				/*
 				 * This is a deref_of (String). The string is a reference
 				 * to a named ACPI object.
 				 *
 				 * 1) Find the owning Node
-				 * 2) Dereference the node to an actual object.  Could be a
+				 * 2) Dereference the node to an actual object. Could be a
 				 *    Field, so we need to resolve the node to a value.
 				 */
 				status =
@@ -857,11 +892,6 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 				     (struct acpi_namespace_node, &return_desc),
 				     walk_state);
 				goto cleanup;
-
-			default:
-
-				status = AE_AML_OPERAND_TYPE;
-				goto cleanup;
 			}
 		}
 
diff --git a/drivers/acpi/executer/exoparg2.c b/drivers/acpi/executer/exoparg2.c
index e263a5d..5e1abb1 100644
--- a/drivers/acpi/executer/exoparg2.c
+++ b/drivers/acpi/executer/exoparg2.c
@@ -138,6 +138,7 @@ acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state)
 			    acpi_ev_check_for_wake_only_gpe(walk_state->
 							    gpe_event_info);
 			if (ACPI_FAILURE(status)) {
+
 				/* AE_WAKE_ONLY_GPE only error, means ignore this notify */
 
 				return_ACPI_STATUS(AE_OK)
@@ -252,6 +253,7 @@ acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state)
 	acpi_ut_remove_reference(return_desc2);
 
 	if (ACPI_FAILURE(status)) {
+
 		/* Delete the return object */
 
 		acpi_ut_remove_reference(return_desc1);
@@ -287,6 +289,7 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
 	/* Execute the opcode */
 
 	if (walk_state->op_info->flags & AML_MATH) {
+
 		/* All simple math opcodes (add, etc.) */
 
 		return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
@@ -383,54 +386,70 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
 			goto cleanup;
 		}
 
+		/* Initialize the Index reference object */
+
 		index = operand[1]->integer.value;
+		return_desc->reference.offset = (u32) index;
+		return_desc->reference.opcode = AML_INDEX_OP;
+		return_desc->reference.object = operand[0];
 
-		/* At this point, the Source operand is a Package, Buffer, or String */
+		/*
+		 * At this point, the Source operand is a String, Buffer, or Package.
+		 * Verify that the index is within range.
+		 */
+		switch (ACPI_GET_OBJECT_TYPE(operand[0])) {
+		case ACPI_TYPE_STRING:
 
-		if (ACPI_GET_OBJECT_TYPE(operand[0]) == ACPI_TYPE_PACKAGE) {
-			/* Object to be indexed is a Package */
+			if (index >= operand[0]->string.length) {
+				status = AE_AML_STRING_LIMIT;
+			}
+
+			return_desc->reference.target_type =
+			    ACPI_TYPE_BUFFER_FIELD;
+			break;
+
+		case ACPI_TYPE_BUFFER:
+
+			if (index >= operand[0]->buffer.length) {
+				status = AE_AML_BUFFER_LIMIT;
+			}
+
+			return_desc->reference.target_type =
+			    ACPI_TYPE_BUFFER_FIELD;
+			break;
+
+		case ACPI_TYPE_PACKAGE:
 
 			if (index >= operand[0]->package.count) {
-				ACPI_ERROR((AE_INFO,
-					    "Index value (%X%8.8X) beyond package end (%X)",
-					    ACPI_FORMAT_UINT64(index),
-					    operand[0]->package.count));
 				status = AE_AML_PACKAGE_LIMIT;
-				goto cleanup;
 			}
 
 			return_desc->reference.target_type = ACPI_TYPE_PACKAGE;
-			return_desc->reference.object = operand[0];
 			return_desc->reference.where =
 			    &operand[0]->package.elements[index];
-		} else {
-			/* Object to be indexed is a Buffer/String */
+			break;
 
-			if (index >= operand[0]->buffer.length) {
-				ACPI_ERROR((AE_INFO,
-					    "Index value (%X%8.8X) beyond end of buffer (%X)",
-					    ACPI_FORMAT_UINT64(index),
-					    operand[0]->buffer.length));
-				status = AE_AML_BUFFER_LIMIT;
-				goto cleanup;
-			}
+		default:
 
-			return_desc->reference.target_type =
-			    ACPI_TYPE_BUFFER_FIELD;
-			return_desc->reference.object = operand[0];
+			status = AE_AML_INTERNAL;
+			goto cleanup;
+		}
+
+		/* Failure means that the Index was beyond the end of the object */
+
+		if (ACPI_FAILURE(status)) {
+			ACPI_EXCEPTION((AE_INFO, status,
+					"Index (%X%8.8X) is beyond end of object",
+					ACPI_FORMAT_UINT64(index)));
+			goto cleanup;
 		}
 
 		/*
 		 * Add a reference to the target package/buffer/string for the life
-		 * of the index.
+		 * of the index
 		 */
 		acpi_ut_add_reference(operand[0]);
 
-		/* Complete the Index reference object */
-
-		return_desc->reference.opcode = AML_INDEX_OP;
-		return_desc->reference.offset = (u32) index;
-
 		/* Store the reference to the Target */
 
 		status = acpi_ex_store(return_desc, operand[2], walk_state);
@@ -509,6 +528,7 @@ acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state)
 	/* Execute the Opcode */
 
 	if (walk_state->op_info->flags & AML_LOGICAL_NUMERIC) {
+
 		/* logical_op (Operand0, Operand1) */
 
 		status = acpi_ex_do_logical_numeric_op(walk_state->opcode,
@@ -518,6 +538,7 @@ acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state)
 						       value, &logical_result);
 		goto store_logical_result;
 	} else if (walk_state->op_info->flags & AML_LOGICAL) {
+
 		/* logical_op (Operand0, Operand1) */
 
 		status = acpi_ex_do_logical_op(walk_state->opcode, operand[0],
diff --git a/drivers/acpi/executer/exoparg3.c b/drivers/acpi/executer/exoparg3.c
index 6a3a883..8da794e 100644
--- a/drivers/acpi/executer/exoparg3.c
+++ b/drivers/acpi/executer/exoparg3.c
@@ -208,6 +208,7 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state)
 			/* If the requested length is zero, don't allocate a buffer */
 
 			if (length > 0) {
+
 				/* Allocate a new buffer for the Buffer */
 
 				buffer = ACPI_MEM_CALLOCATE(length);
@@ -225,6 +226,7 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state)
 		}
 
 		if (buffer) {
+
 			/* We have a buffer, copy the portion requested */
 
 			ACPI_MEMCPY(buffer, operand[0]->string.pointer + index,
diff --git a/drivers/acpi/executer/exoparg6.c b/drivers/acpi/executer/exoparg6.c
index e043d92..33e4fb1 100644
--- a/drivers/acpi/executer/exoparg6.c
+++ b/drivers/acpi/executer/exoparg6.c
@@ -276,6 +276,7 @@ acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state)
 		 * match was found.
 		 */
 		for (; index < operand[0]->package.count; index++) {
+
 			/* Get the current package element */
 
 			this_element = operand[0]->package.elements[index];
diff --git a/drivers/acpi/executer/exregion.c b/drivers/acpi/executer/exregion.c
index 6a4cfdf..9db68d1 100644
--- a/drivers/acpi/executer/exregion.c
+++ b/drivers/acpi/executer/exregion.c
@@ -135,6 +135,7 @@ acpi_ex_system_memory_space_handler(u32 function,
 		 * Delete the existing mapping and create a new one.
 		 */
 		if (mem_info->mapped_length) {
+
 			/* Valid mapping, delete it */
 
 			acpi_os_unmap_memory(mem_info->mapped_logical_address,
diff --git a/drivers/acpi/executer/exresnte.c b/drivers/acpi/executer/exresnte.c
index 01b26c8..417d914 100644
--- a/drivers/acpi/executer/exresnte.c
+++ b/drivers/acpi/executer/exresnte.c
@@ -103,6 +103,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr,
 
 	if ((entry_type == ACPI_TYPE_LOCAL_ALIAS) ||
 	    (entry_type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) {
+
 		/* There is always exactly one level of indirection */
 
 		node = ACPI_CAST_PTR(struct acpi_namespace_node, node->object);
@@ -141,6 +142,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr,
 
 		status = acpi_ds_get_package_arguments(source_desc);
 		if (ACPI_SUCCESS(status)) {
+
 			/* Return an additional reference to the object */
 
 			obj_desc = source_desc;
@@ -158,6 +160,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr,
 
 		status = acpi_ds_get_buffer_arguments(source_desc);
 		if (ACPI_SUCCESS(status)) {
+
 			/* Return an additional reference to the object */
 
 			obj_desc = source_desc;
@@ -240,6 +243,8 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr,
 			/* This is a ddb_handle */
 			/* Return an additional reference to the object */
 
+		case AML_REF_OF_OP:
+
 			obj_desc = source_desc;
 			acpi_ut_add_reference(obj_desc);
 			break;
diff --git a/drivers/acpi/executer/exresolv.c b/drivers/acpi/executer/exresolv.c
index 1deed49..22dabdd 100644
--- a/drivers/acpi/executer/exresolv.c
+++ b/drivers/acpi/executer/exresolv.c
@@ -382,10 +382,16 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state,
 	while (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REFERENCE) {
 		switch (obj_desc->reference.opcode) {
 		case AML_REF_OF_OP:
+		case AML_INT_NAMEPATH_OP:
 
 			/* Dereference the reference pointer */
 
-			node = obj_desc->reference.object;
+			if (obj_desc->reference.opcode == AML_REF_OF_OP) {
+				node = obj_desc->reference.object;
+			} else {	/* AML_INT_NAMEPATH_OP */
+
+				node = obj_desc->reference.node;
+			}
 
 			/* All "References" point to a NS node */
 
@@ -401,6 +407,7 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state,
 
 			obj_desc = acpi_ns_get_attached_object(node);
 			if (!obj_desc) {
+
 				/* No object, use the NS node type */
 
 				type = acpi_ns_get_type(node);
@@ -432,6 +439,7 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state,
 			 */
 			obj_desc = *(obj_desc->reference.where);
 			if (!obj_desc) {
+
 				/* NULL package elements are allowed */
 
 				type = 0;	/* Uninitialized */
@@ -439,39 +447,6 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state,
 			}
 			break;
 
-		case AML_INT_NAMEPATH_OP:
-
-			/* Dereference the reference pointer */
-
-			node = obj_desc->reference.node;
-
-			/* All "References" point to a NS node */
-
-			if (ACPI_GET_DESCRIPTOR_TYPE(node) !=
-			    ACPI_DESC_TYPE_NAMED) {
-				ACPI_ERROR((AE_INFO, "Not a NS node %p [%s]",
-					    node,
-					    acpi_ut_get_descriptor_name(node)));
-				return_ACPI_STATUS(AE_AML_INTERNAL);
-			}
-
-			/* Get the attached object */
-
-			obj_desc = acpi_ns_get_attached_object(node);
-			if (!obj_desc) {
-				/* No object, use the NS node type */
-
-				type = acpi_ns_get_type(node);
-				goto exit;
-			}
-
-			/* Check for circular references */
-
-			if (obj_desc == operand) {
-				return_ACPI_STATUS(AE_AML_CIRCULAR_REFERENCE);
-			}
-			break;
-
 		case AML_LOCAL_OP:
 		case AML_ARG_OP:
 
diff --git a/drivers/acpi/executer/exresop.c b/drivers/acpi/executer/exresop.c
index a1c000f..42b9089d 100644
--- a/drivers/acpi/executer/exresop.c
+++ b/drivers/acpi/executer/exresop.c
@@ -77,6 +77,7 @@ acpi_ex_check_object_type(acpi_object_type type_needed,
 	ACPI_FUNCTION_ENTRY();
 
 	if (type_needed == ACPI_TYPE_ANY) {
+
 		/* All types OK, so we don't perform any typechecks */
 
 		return (AE_OK);
@@ -224,6 +225,7 @@ acpi_ex_resolve_operands(u16 opcode,
 			}
 
 			if (object_type == (u8) ACPI_TYPE_LOCAL_REFERENCE) {
+
 				/* Decode the Reference */
 
 				op_info = acpi_ps_get_opcode_info(opcode);
@@ -332,6 +334,7 @@ acpi_ex_resolve_operands(u16 opcode,
 			}
 
 			if (obj_desc->reference.opcode == AML_NAME_OP) {
+
 				/* Convert a named reference to the actual named object */
 
 				temp_node = obj_desc->reference.object;
@@ -662,6 +665,7 @@ acpi_ex_resolve_operands(u16 opcode,
 				}
 
 				if (target_op == AML_DEBUG_OP) {
+
 					/* Allow store of any object to the Debug object */
 
 					break;
diff --git a/drivers/acpi/executer/exstore.c b/drivers/acpi/executer/exstore.c
index 3f020c0..287476f 100644
--- a/drivers/acpi/executer/exstore.c
+++ b/drivers/acpi/executer/exstore.c
@@ -423,6 +423,7 @@ acpi_ex_store_object_to_index(union acpi_operand_object *source_desc,
 		}
 
 		if (obj_desc) {
+
 			/* Decrement reference count by the ref count of the parent package */
 
 			for (i = 0; i < ((union acpi_operand_object *)
@@ -572,6 +573,7 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc,
 	/* If no implicit conversion, drop into the default case below */
 
 	if ((!implicit_conversion) || (walk_state->opcode == AML_COPY_OP)) {
+
 		/* Force execution of default (no implicit conversion) */
 
 		target_type = ACPI_TYPE_ANY;
diff --git a/drivers/acpi/executer/exstoren.c b/drivers/acpi/executer/exstoren.c
index 42967ba..969f9cb 100644
--- a/drivers/acpi/executer/exstoren.c
+++ b/drivers/acpi/executer/exstoren.c
@@ -97,6 +97,7 @@ acpi_ex_resolve_object(union acpi_operand_object **source_desc_ptr,
 		 */
 		if (ACPI_GET_OBJECT_TYPE(source_desc) ==
 		    ACPI_TYPE_LOCAL_REFERENCE) {
+
 			/* Resolve a reference object first */
 
 			status =
@@ -121,6 +122,7 @@ acpi_ex_resolve_object(union acpi_operand_object **source_desc_ptr,
 		    !((ACPI_GET_OBJECT_TYPE(source_desc) ==
 		       ACPI_TYPE_LOCAL_REFERENCE)
 		      && (source_desc->reference.opcode == AML_LOAD_OP))) {
+
 			/* Conversion successful but still not a valid type */
 
 			ACPI_ERROR((AE_INFO,
@@ -289,6 +291,7 @@ acpi_ex_store_object_to_object(union acpi_operand_object *source_desc,
 	}
 
 	if (actual_src_desc != source_desc) {
+
 		/* Delete the intermediate (temporary) source object */
 
 		acpi_ut_remove_reference(actual_src_desc);
diff --git a/drivers/acpi/executer/exstorob.c b/drivers/acpi/executer/exstorob.c
index 6ab7070..41732d3 100644
--- a/drivers/acpi/executer/exstorob.c
+++ b/drivers/acpi/executer/exstorob.c
@@ -91,6 +91,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc,
 	/* Copy source buffer to target buffer */
 
 	if (length <= target_desc->buffer.length) {
+
 		/* Clear existing buffer and copy in the new one */
 
 		ACPI_MEMSET(target_desc->buffer.pointer, 0,
@@ -113,6 +114,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc,
 		 * copy must not truncate the original buffer.
 		 */
 		if (original_src_type == ACPI_TYPE_STRING) {
+
 			/* Set the new length of the target */
 
 			target_desc->buffer.length = length;
@@ -183,6 +185,7 @@ acpi_ex_store_string_to_string(union acpi_operand_object *source_desc,
 		 */
 		if (target_desc->string.pointer &&
 		    (!(target_desc->common.flags & AOPOBJ_STATIC_POINTER))) {
+
 			/* Only free if not a pointer into the DSDT */
 
 			ACPI_MEM_FREE(target_desc->string.pointer);
diff --git a/drivers/acpi/executer/exsystem.c b/drivers/acpi/executer/exsystem.c
index ea9144f..6a2e47a 100644
--- a/drivers/acpi/executer/exsystem.c
+++ b/drivers/acpi/executer/exsystem.c
@@ -76,6 +76,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_handle semaphore, u16 timeout)
 	}
 
 	if (status == AE_TIME) {
+
 		/* We must wait, so unlock the interpreter */
 
 		acpi_ex_exit_interpreter();
@@ -90,6 +91,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_handle semaphore, u16 timeout)
 
 		status2 = acpi_ex_enter_interpreter();
 		if (ACPI_FAILURE(status2)) {
+
 			/* Report fatal error, could not acquire interpreter */
 
 			return_ACPI_STATUS(status2);
diff --git a/drivers/acpi/executer/exutils.c b/drivers/acpi/executer/exutils.c
index f73a61a..8543d1a 100644
--- a/drivers/acpi/executer/exutils.c
+++ b/drivers/acpi/executer/exutils.c
@@ -194,6 +194,7 @@ u8 acpi_ex_acquire_global_lock(u32 field_flags)
 	/* Only attempt lock if the always_lock bit is set */
 
 	if (field_flags & AML_FIELD_LOCK_RULE_MASK) {
+
 		/* We should attempt to get the lock, wait forever */
 
 		status = acpi_ev_acquire_global_lock(ACPI_WAIT_FOREVER);
@@ -230,10 +231,12 @@ void acpi_ex_release_global_lock(u8 locked_by_me)
 	/* Only attempt unlock if the caller locked it */
 
 	if (locked_by_me) {
+
 		/* OK, now release the lock */
 
 		status = acpi_ev_release_global_lock();
 		if (ACPI_FAILURE(status)) {
+
 			/* Report the error, but there isn't much else we can do */
 
 			ACPI_EXCEPTION((AE_INFO, status,