ACPICA: Fix for fault if Load() fails
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>
diff --git a/drivers/acpi/tables/tbinstal.c b/drivers/acpi/tables/tbinstal.c
index 3bc0c67..6a6ee1f 100644
--- a/drivers/acpi/tables/tbinstal.c
+++ b/drivers/acpi/tables/tbinstal.c
@@ -125,13 +125,20 @@
/* 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);
}