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ACPICA: Fix for fault if Load() fails

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Fixed a problem with the Load operator when loading a table from
a buffer object. The input buffer was prematurely zeroed and/or
deleted.

http://www.acpica.org/bugzilla/show_bug.cgi?id=577

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bob Moore
2008-04-10 19:06:39 +04:00
committed by Len Brown
parent 53cf174409
commit 5eb691805f
3 changed files with 43 additions and 18 deletions
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21
drivers/acpi/tables/tbinstal.c
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@@ -125,13 +125,20 @@ acpi_tb_add_table(struct acpi_table_desc *table_desc,
/* The table must be either an SSDT or a PSDT or an OEMx */
if ((!ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_PSDT))
&&
(!ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_SSDT))
&& (strncmp(table_desc->pointer->signature, "OEM", 3))) {
ACPI_ERROR((AE_INFO,
"Table has invalid signature [%4.4s], must be SSDT, PSDT or OEMx",
table_desc->pointer->signature));
if (!ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_PSDT)&&
!ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_SSDT)&&
strncmp(table_desc->pointer->signature, "OEM", 3)) {
/* Check for a printable name */
if (acpi_ut_valid_acpi_name(
*(u32 *) table_desc->pointer->signature)) {
ACPI_ERROR((AE_INFO, "Table has invalid signature "
"[%4.4s], must be SSDT or PSDT",
table_desc->pointer->signature));
} else {
ACPI_ERROR((AE_INFO, "Table has invalid signature "
"(0x%8.8X), must be SSDT or PSDT",
*(u32 *) table_desc->pointer->signature));
}
return_ACPI_STATUS(AE_BAD_SIGNATURE);
}