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ACPI: acpi_os_get_thread_id() returns current

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Linux mutexes and the debug code that that reference
acpi_os_get_thread_id() are happy with 0.
But the AML mutexes in exmutex.c expect a unique non-zero
number for each thread - as they track this thread_id
to permit the mutex re-entrancy defined by the ACPI spec.

http://bugzilla.kernel.org/show_bug.cgi?id=6687

Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Len Brown
2006-07-07 20:11:07 -04:00
parent 120bda20c6
commit ab8aa06a5c
5 changed files with 12 additions and 11 deletions
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4
drivers/acpi/executer/exmutex.c
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@@ -267,9 +267,9 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
&& (obj_desc->mutex.os_mutex != ACPI_GLOBAL_LOCK)) {
ACPI_ERROR((AE_INFO,
"Thread %X cannot release Mutex [%4.4s] acquired by thread %X",
walk_state->thread->thread_id,
(u32) walk_state->thread->thread_id,
acpi_ut_get_node_name(obj_desc->mutex.node),
obj_desc->mutex.owner_thread->thread_id));
(u32) obj_desc->mutex.owner_thread->thread_id));
return_ACPI_STATUS(AE_AML_NOT_OWNER);
}