ACPI: ACPICA 20060310

Tagged all external interfaces to the subsystem with the
new ACPI_EXPORT_SYMBOL macro. This macro can be defined
as necessary to assist kernel integration. For Linux,
the macro resolves to the EXPORT_SYMBOL macro. The default
definition is NULL.

Added the ACPI_THREAD_ID type for the return value from
acpi_os_get_thread_id(). This allows the host to define this
as necessary to simplify kernel integration. The default
definition is ACPI_NATIVE_UINT.

Valery Podrezov fixed two interpreter problems related
to error processing, the deletion of objects, and placing
invalid pointers onto the internal operator result stack.
http://bugzilla.kernel.org/show_bug.cgi?id=6028
http://bugzilla.kernel.org/show_bug.cgi?id=6151

Increased the reference count threshold where a warning is
emitted for large reference counts in order to eliminate
unnecessary warnings on systems with large namespaces
(especially 64-bit.) Increased the value from 0x400
to 0x800.

Due to universal disagreement as to the meaning of the
'c' in the calloc() function, the ACPI_MEM_CALLOCATE
macro has been renamed to ACPI_ALLOCATE_ZEROED so that the
purpose of the interface is 'clear'. ACPI_MEM_ALLOCATE and
ACPI_MEM_FREE are renamed to ACPI_ALLOCATE and ACPI_FREE.

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

9 files changed, 34 insertions, 28 deletions

diff --git a/drivers/acpi/executer/exconfig.c b/drivers/acpi/executer/exconfig.c
index 864530f754c3..e0deffb56790 100644
--- a/drivers/acpi/executer/exconfig.c
+++ b/drivers/acpi/executer/exconfig.c
@@ -349,7 +349,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 
 		/* Allocate a buffer for the entire table */
 
-		table_ptr = ACPI_MEM_ALLOCATE(table_header.length);
+		table_ptr = ACPI_ALLOCATE(table_header.length);
 		if (!table_ptr) {
 			return_ACPI_STATUS(AE_NO_MEMORY);
 		}
@@ -447,7 +447,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 
       cleanup:
 	if (ACPI_FAILURE(status)) {
-		ACPI_MEM_FREE(table_ptr);
+		ACPI_FREE(table_ptr);
 	}
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/executer/exdump.c b/drivers/acpi/executer/exdump.c
index 0a53d31e09de..502293c35afa 100644
--- a/drivers/acpi/executer/exdump.c
+++ b/drivers/acpi/executer/exdump.c
@@ -903,7 +903,7 @@ static void acpi_ex_dump_reference_obj(union acpi_operand_object *obj_desc)
 			acpi_os_printf("Could not convert name to pathname\n");
 		} else {
 			acpi_os_printf("%s\n", (char *)ret_buf.pointer);
-			ACPI_MEM_FREE(ret_buf.pointer);
+			ACPI_FREE(ret_buf.pointer);
 		}
 	} else if (obj_desc->reference.object) {
 		acpi_os_printf("\nReferenced Object: %p\n",
diff --git a/drivers/acpi/executer/exfield.c b/drivers/acpi/executer/exfield.c
index 215783a33c2c..36c265a00c26 100644
--- a/drivers/acpi/executer/exfield.c
+++ b/drivers/acpi/executer/exfield.c
@@ -333,7 +333,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
 
 		/* We need to create a new buffer */
 
-		new_buffer = ACPI_MEM_CALLOCATE(required_length);
+		new_buffer = ACPI_ALLOCATE_ZEROED(required_length);
 		if (!new_buffer) {
 			return_ACPI_STATUS(AE_NO_MEMORY);
 		}
@@ -377,7 +377,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
 	/* Free temporary buffer if we used one */
 
 	if (new_buffer) {
-		ACPI_MEM_FREE(new_buffer);
+		ACPI_FREE(new_buffer);
 	}
 
 	return_ACPI_STATUS(status);
diff --git a/drivers/acpi/executer/exnames.c b/drivers/acpi/executer/exnames.c
index f9bc81c1b78d..80bbc20756a1 100644
--- a/drivers/acpi/executer/exnames.c
+++ b/drivers/acpi/executer/exnames.c
@@ -98,7 +98,7 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs)
 	 * Allocate a buffer for the name.
 	 * This buffer must be deleted by the caller!
 	 */
-	name_string = ACPI_MEM_ALLOCATE(size_needed);
+	name_string = ACPI_ALLOCATE(size_needed);
 	if (!name_string) {
 		ACPI_ERROR((AE_INFO,
 			    "Could not allocate size %d", size_needed));
@@ -424,7 +424,7 @@ acpi_ex_get_name_string(acpi_object_type data_type,
 
 	if (ACPI_FAILURE(status)) {
 		if (name_string) {
-			ACPI_MEM_FREE(name_string);
+			ACPI_FREE(name_string);
 		}
 		return_ACPI_STATUS(status);
 	}
diff --git a/drivers/acpi/executer/exoparg1.c b/drivers/acpi/executer/exoparg1.c
index 4f3627ee2b2b..d00f766246f3 100644
--- a/drivers/acpi/executer/exoparg1.c
+++ b/drivers/acpi/executer/exoparg1.c
@@ -554,16 +554,18 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
 
       cleanup:
 
-	if (!walk_state->result_obj) {
-		walk_state->result_obj = return_desc;
-	}
-
 	/* Delete return object on error */
 
 	if (ACPI_FAILURE(status)) {
 		acpi_ut_remove_reference(return_desc);
 	}
 
+	/* Save return object on success */
+
+	else if (!walk_state->result_obj) {
+		walk_state->result_obj = return_desc;
+	}
+
 	return_ACPI_STATUS(status);
 }
 
@@ -1028,6 +1030,11 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 		acpi_ut_remove_reference(return_desc);
 	}
 
-	walk_state->result_obj = return_desc;
+	/* Save return object on success */
+
+	else {
+		walk_state->result_obj = return_desc;
+	}
+
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/executer/exoparg2.c b/drivers/acpi/executer/exoparg2.c
index 5e1abb12c748..690e43db0abe 100644
--- a/drivers/acpi/executer/exoparg2.c
+++ b/drivers/acpi/executer/exoparg2.c
@@ -391,7 +391,6 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
 		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 String, Buffer, or Package.
@@ -445,9 +444,10 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
 		}
 
 		/*
-		 * Add a reference to the target package/buffer/string for the life
+		 * Save the target object and add a reference to it for the life
 		 * of the index
 		 */
+		return_desc->reference.object = operand[0];
 		acpi_ut_add_reference(operand[0]);
 
 		/* Store the reference to the Target */
diff --git a/drivers/acpi/executer/exoparg3.c b/drivers/acpi/executer/exoparg3.c
index 8da794ec35b0..4897e6c3431f 100644
--- a/drivers/acpi/executer/exoparg3.c
+++ b/drivers/acpi/executer/exoparg3.c
@@ -100,8 +100,7 @@ acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state)
 				  (u32) operand[1]->integer.value,
 				  (u32) operand[2]->integer.value));
 
-		fatal =
-		    ACPI_MEM_ALLOCATE(sizeof(struct acpi_signal_fatal_info));
+		fatal = ACPI_ALLOCATE(sizeof(struct acpi_signal_fatal_info));
 		if (fatal) {
 			fatal->type = (u32) operand[0]->integer.value;
 			fatal->code = (u32) operand[1]->integer.value;
@@ -114,7 +113,7 @@ acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state)
 
 		/* Might return while OS is shutting down, just continue */
 
-		ACPI_MEM_FREE(fatal);
+		ACPI_FREE(fatal);
 		break;
 
 	default:
@@ -196,7 +195,7 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state)
 
 			/* Always allocate a new buffer for the String */
 
-			buffer = ACPI_MEM_CALLOCATE((acpi_size) length + 1);
+			buffer = ACPI_ALLOCATE_ZEROED((acpi_size) length + 1);
 			if (!buffer) {
 				status = AE_NO_MEMORY;
 				goto cleanup;
@@ -211,7 +210,7 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state)
 
 				/* Allocate a new buffer for the Buffer */
 
-				buffer = ACPI_MEM_CALLOCATE(length);
+				buffer = ACPI_ALLOCATE_ZEROED(length);
 				if (!buffer) {
 					status = AE_NO_MEMORY;
 					goto cleanup;
diff --git a/drivers/acpi/executer/exregion.c b/drivers/acpi/executer/exregion.c
index 9db68d19253e..fdeda7beae43 100644
--- a/drivers/acpi/executer/exregion.c
+++ b/drivers/acpi/executer/exregion.c
@@ -182,8 +182,8 @@ acpi_ex_system_memory_space_handler(u32 function,
 	     (acpi_integer) mem_info->mapped_physical_address);
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-			  "system_memory %d (%d width) Address=%8.8X%8.8X\n",
-			  function, bit_width, ACPI_FORMAT_UINT64(address)));
+			  "System-Memory (width %d) R/W %d Address=%8.8X%8.8X\n",
+			  bit_width, function, ACPI_FORMAT_UINT64(address)));
 
 	/*
 	 * Perform the memory read or write
@@ -287,8 +287,8 @@ acpi_ex_system_io_space_handler(u32 function,
 	ACPI_FUNCTION_TRACE("ex_system_io_space_handler");
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-			  "system_iO %d (%d width) Address=%8.8X%8.8X\n",
-			  function, bit_width, ACPI_FORMAT_UINT64(address)));
+			  "System-IO (width %d) R/W %d Address=%8.8X%8.8X\n",
+			  bit_width, function, ACPI_FORMAT_UINT64(address)));
 
 	/* Decode the function parameter */
 
@@ -361,7 +361,7 @@ acpi_ex_pci_config_space_handler(u32 function,
 	pci_register = (u16) (u32) address;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-			  "pci_config %d (%d) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n",
+			  "Pci-Config %d (%d) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n",
 			  function, bit_width, pci_id->segment, pci_id->bus,
 			  pci_id->device, pci_id->function, pci_register));
 
diff --git a/drivers/acpi/executer/exstorob.c b/drivers/acpi/executer/exstorob.c
index 41732d382bce..db42461101e0 100644
--- a/drivers/acpi/executer/exstorob.c
+++ b/drivers/acpi/executer/exstorob.c
@@ -80,7 +80,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc,
 	 */
 	if ((target_desc->buffer.length == 0) ||
 	    (target_desc->common.flags & AOPOBJ_STATIC_POINTER)) {
-		target_desc->buffer.pointer = ACPI_MEM_ALLOCATE(length);
+		target_desc->buffer.pointer = ACPI_ALLOCATE(length);
 		if (!target_desc->buffer.pointer) {
 			return_ACPI_STATUS(AE_NO_MEMORY);
 		}
@@ -188,11 +188,11 @@ acpi_ex_store_string_to_string(union acpi_operand_object *source_desc,
 
 			/* Only free if not a pointer into the DSDT */
 
-			ACPI_MEM_FREE(target_desc->string.pointer);
+			ACPI_FREE(target_desc->string.pointer);
 		}
 
-		target_desc->string.pointer = ACPI_MEM_CALLOCATE((acpi_size)
-								 length + 1);
+		target_desc->string.pointer = ACPI_ALLOCATE_ZEROED((acpi_size)
+								   length + 1);
 		if (!target_desc->string.pointer) {
 			return_ACPI_STATUS(AE_NO_MEMORY);
 		}