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ACPICA: Fix possible memory leak on error in parser

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Fixes a possible memory leak if an allocation failure happens in
the parse loop. Must terminate an executing control method.
Lin Ming, Bob Moore. ACPICA BZ 489.

http://www.acpica.org/bugzilla/show_bug.cgi?id=489

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Lin Ming 2008-11-12 14:56:59 +08:00 committed by Len Brown
parent d85988fa02
commit 84d4db7c52
1 changed files with 8 additions and 0 deletions
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8
drivers/acpi/parser/psparse.c
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@ -451,6 +451,14 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
thread = acpi_ut_create_thread_state();
if (!thread) {
if (walk_state->method_desc) {
/* Executing a control method - additional cleanup */
acpi_ds_terminate_control_method(
walk_state->method_desc, walk_state);
}
acpi_ds_delete_walk_state(walk_state);
return_ACPI_STATUS(AE_NO_MEMORY);
}