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Do not attempt to allocate a buffer pointer with length == 0

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date	2003.05.20.20.45.00;	author rmoore1;	state Exp;
This commit is contained in:
aystarik 2005-06-29 19:21:53 +00:00
parent 7d02183d23
commit 07cacf3cb0
1 changed files with 17 additions and 12 deletions
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29
source/components/utilities/utobject.c
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@ -1,7 +1,7 @@
/******************************************************************************
*
* Module Name: utobject - ACPI object create/delete/size/cache routines
* $Revision: 1.79 $
* $Revision: 1.83 $
*
*****************************************************************************/
@ -9,7 +9,7 @@
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2002, Intel Corp.
* Some or all of this work - Copyright (c) 1999 - 2003, Intel Corp.
* All rights reserved.
*
* 2. License
@ -148,7 +148,7 @@
ACPI_OPERAND_OBJECT *
AcpiUtCreateInternalObjectDbg (
NATIVE_CHAR *ModuleName,
char *ModuleName,
UINT32 LineNumber,
UINT32 ComponentId,
ACPI_OBJECT_TYPE Type)
@ -226,7 +226,7 @@ AcpiUtCreateBufferObject (
ACPI_SIZE BufferSize)
{
ACPI_OPERAND_OBJECT *BufferDesc;
UINT8 *Buffer;
UINT8 *Buffer = NULL;
ACPI_FUNCTION_TRACE_U32 ("UtCreateBufferObject", BufferSize);
@ -241,15 +241,20 @@ AcpiUtCreateBufferObject (
return_PTR (NULL);
}
/* Allocate the actual buffer */
/* Create an actual buffer only if size > 0 */
Buffer = ACPI_MEM_CALLOCATE (BufferSize);
if (!Buffer)
if (BufferSize > 0)
{
ACPI_REPORT_ERROR (("CreateBuffer: could not allocate size %X\n",
(UINT32) BufferSize));
AcpiUtRemoveReference (BufferDesc);
return_PTR (NULL);
/* Allocate the actual buffer */
Buffer = ACPI_MEM_CALLOCATE (BufferSize);
if (!Buffer)
{
ACPI_REPORT_ERROR (("CreateBuffer: could not allocate size %X\n",
(UINT32) BufferSize));
AcpiUtRemoveReference (BufferDesc);
return_PTR (NULL);
}
}
/* Complete buffer object initialization */
@ -347,7 +352,7 @@ AcpiUtValidInternalObject (
void *
AcpiUtAllocateObjectDescDbg (
NATIVE_CHAR *ModuleName,
char *ModuleName,
UINT32 LineNumber,
UINT32 ComponentId)
{