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authorBob Moore <robert.moore@intel.com>2005-12-16 17:05:00 -0500
committerLen Brown <len.brown@intel.com>2005-12-28 02:54:59 -0500
commitdefba1d8f233c0d5cf3e1ea6aeb898eca7231860 (patch)
treecd8b1b84da8d8a52ad0d44107daaeeee0a0b65f4 /drivers/acpi/executer
parentcb654695f6b912cef7cb3271665b6ee0d416124c (diff)
downloadop-kernel-dev-defba1d8f233c0d5cf3e1ea6aeb898eca7231860.zip
op-kernel-dev-defba1d8f233c0d5cf3e1ea6aeb898eca7231860.tar.gz
[ACPI] ACPICA 20051216
Implemented optional support to allow unresolved names within ASL Package objects. A null object is inserted in the package when a named reference cannot be located in the current namespace. Enabled via the interpreter slack flag which Linux has enabled by default (acpi=strict to disable slack). This should eliminate AE_NOT_FOUND exceptions seen on machines that contain such code. Implemented an optimization to the initialization sequence that can improve boot time. During ACPI device initialization, the _STA method is now run if and only if the _INI method exists. The _STA method is used to determine if the device is present; An _INI can only be run if _STA returns present, but it is a waste of time to run the _STA method if the _INI does not exist. (Prototype and assistance from Dong Wei) Implemented use of the C99 uintptr_t for the pointer casting macros if it is available in the current compiler. Otherwise, the default (void *) cast is used as before. Fixed some possible memory leaks found within the execution path of the Break, Continue, If, and CreateField operators. (Valery Podrezov) Fixed a problem introduced in the 20051202 release where an exception is generated during method execution if a control method attempts to declare another method. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/executer')
-rw-r--r--drivers/acpi/executer/exoparg3.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/acpi/executer/exoparg3.c b/drivers/acpi/executer/exoparg3.c
index 4833657..2ea1c32 100644
--- a/drivers/acpi/executer/exoparg3.c
+++ b/drivers/acpi/executer/exoparg3.c
@@ -223,8 +223,8 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state)
goto cleanup;
}
- if (length > 0) {
- /* Copy the portion requested */
+ if (buffer) {
+ /* We have a buffer, copy the portion requested */
ACPI_MEMCPY(buffer, operand[0]->string.pointer + index,
length);
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