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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/utilities/utdebug.c
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@@ -47,7 +47,7 @@
ACPI_MODULE_NAME("utdebug")
#ifdef ACPI_DEBUG_OUTPUT
static u32 acpi_gbl_prev_thread_id = 0xFFFFFFFF;
static acpi_thread_id acpi_gbl_prev_thread_id;
static char *acpi_gbl_fn_entry_str = "----Entry";
static char *acpi_gbl_fn_exit_str = "----Exit-";
@@ -181,7 +181,7 @@ acpi_ut_debug_print(u32 requested_debug_level,
if (ACPI_LV_THREADS & acpi_dbg_level) {
acpi_os_printf
("\n**** Context Switch from TID %X to TID %X ****\n\n",
acpi_gbl_prev_thread_id, thread_id);
(u32) acpi_gbl_prev_thread_id, (u32) thread_id);
}
acpi_gbl_prev_thread_id = thread_id;