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| author | Bob Moore <robert.moore@intel.com> | 2007-02-02 19:48:21 +0300 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2007-02-02 21:14:26 -0500 |
| commit | f70a5e7b6c28e0b08f721204f4b98c5d1cfb44d9 (patch) | |
| tree | de514a441fdc075ae2f89ca8ecc014481459a333 | |
| parent | 310a7f7fee489b7dadd27b0d8487bd0ce66281e7 (diff) | |
| download | linux-stable-f70a5e7b6c28e0b08f721204f4b98c5d1cfb44d9.tar.gz linux-stable-f70a5e7b6c28e0b08f721204f4b98c5d1cfb44d9.tar.bz2 linux-stable-f70a5e7b6c28e0b08f721204f4b98c5d1cfb44d9.zip | |
ACPICA: On AML mutex force-release, set depth to zero (was 1).
Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
| -rw-r--r-- | drivers/acpi/executer/exmutex.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/acpi/executer/exmutex.c b/drivers/acpi/executer/exmutex.c index f1dd1b07d482..b0be2f46d249 100644 --- a/drivers/acpi/executer/exmutex.c +++ b/drivers/acpi/executer/exmutex.c @@ -329,6 +329,12 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, * * DESCRIPTION: Release all mutexes held by this thread * + * NOTE: This function is called as the thread is exiting the interpreter. + * Mutexes are not released when an individual control method is exited, but + * only when the parent thread actually exits the interpreter. This allows one + * method to acquire a mutex, and a different method to release it, as long as + * this is performed underneath a single parent control method. + * ******************************************************************************/ void acpi_ex_release_all_mutexes(struct acpi_thread_state *thread) @@ -346,7 +352,7 @@ void acpi_ex_release_all_mutexes(struct acpi_thread_state *thread) obj_desc->mutex.prev = NULL; obj_desc->mutex.next = NULL; - obj_desc->mutex.acquisition_depth = 1; + obj_desc->mutex.acquisition_depth = 0; /* Release the mutex, special case for Global Lock */ |