diff options
Diffstat (limited to 'drivers/acpi/acpica/exmutex.c')
| -rw-r--r-- | drivers/acpi/acpica/exmutex.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/acpi/acpica/exmutex.c b/drivers/acpi/acpica/exmutex.c index bcceda5be9e3..7be0205ad067 100644 --- a/drivers/acpi/acpica/exmutex.c +++ b/drivers/acpi/acpica/exmutex.c @@ -1,4 +1,3 @@ - /****************************************************************************** * * Module Name: exmutex - ASL Mutex Acquire/Release functions @@ -6,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2012, Intel Corp. + * Copyright (C) 2000 - 2013, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -305,7 +304,7 @@ acpi_status acpi_ex_release_mutex_object(union acpi_operand_object *obj_desc) ACPI_FUNCTION_TRACE(ex_release_mutex_object); if (obj_desc->mutex.acquisition_depth == 0) { - return (AE_NOT_ACQUIRED); + return_ACPI_STATUS(AE_NOT_ACQUIRED); } /* Match multiple Acquires with multiple Releases */ @@ -378,7 +377,8 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, return_ACPI_STATUS(AE_AML_MUTEX_NOT_ACQUIRED); } - /* Must have a valid thread. */ + /* Must have a valid thread ID */ + if (!walk_state->thread) { ACPI_ERROR((AE_INFO, "Cannot release Mutex [%4.4s], null thread info", @@ -462,7 +462,7 @@ void acpi_ex_release_all_mutexes(struct acpi_thread_state *thread) union acpi_operand_object *next = thread->acquired_mutex_list; union acpi_operand_object *obj_desc; - ACPI_FUNCTION_ENTRY(); + ACPI_FUNCTION_NAME(ex_release_all_mutexes); /* Traverse the list of owned mutexes, releasing each one */ @@ -474,6 +474,10 @@ void acpi_ex_release_all_mutexes(struct acpi_thread_state *thread) obj_desc->mutex.next = NULL; obj_desc->mutex.acquisition_depth = 0; + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Force-releasing held mutex: %p\n", + obj_desc)); + /* Release the mutex, special case for Global Lock */ if (obj_desc == acpi_gbl_global_lock_mutex) { |