diff options
Diffstat (limited to 'drivers/acpi/utilities')
| -rw-r--r-- | drivers/acpi/utilities/utmisc.c | 38 |
1 files changed, 22 insertions, 16 deletions
diff --git a/drivers/acpi/utilities/utmisc.c b/drivers/acpi/utilities/utmisc.c index f6de4ed3d52..bb658777fa8 100644 --- a/drivers/acpi/utilities/utmisc.c +++ b/drivers/acpi/utilities/utmisc.c @@ -787,7 +787,6 @@ acpi_ut_release_mutex ( acpi_mutex_handle mutex_id) { acpi_status status; - u32 i; u32 this_thread_id; @@ -814,25 +813,32 @@ acpi_ut_release_mutex ( return (AE_NOT_ACQUIRED); } - /* - * Deadlock prevention. Check if this thread owns any mutexes of value - * greater than this one. If so, the thread has violated the mutex - * ordering rule. This indicates a coding error somewhere in - * the ACPI subsystem code. - */ - for (i = mutex_id; i < MAX_MUTEX; i++) { - if (acpi_gbl_mutex_info[i].owner_id == this_thread_id) { - if (i == mutex_id) { - continue; - } +#ifdef ACPI_MUTEX_DEBUG + { + u32 i; + /* + * Mutex debug code, for internal debugging only. + * + * Deadlock prevention. Check if this thread owns any mutexes of value + * greater than this one. If so, the thread has violated the mutex + * ordering rule. This indicates a coding error somewhere in + * the ACPI subsystem code. + */ + for (i = mutex_id; i < MAX_MUTEX; i++) { + if (acpi_gbl_mutex_info[i].owner_id == this_thread_id) { + if (i == mutex_id) { + continue; + } - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Invalid release order: owns [%s], releasing [%s]\n", - acpi_ut_get_mutex_name (i), acpi_ut_get_mutex_name (mutex_id))); + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, + "Invalid release order: owns [%s], releasing [%s]\n", + acpi_ut_get_mutex_name (i), acpi_ut_get_mutex_name (mutex_id))); - return (AE_RELEASE_DEADLOCK); + return (AE_RELEASE_DEADLOCK); + } } } +#endif /* Mark unlocked FIRST */ |