ACPICA: Misc fixes for recent global lock code update
Fixes as a result of running full validation test suite.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/executer/exmutex.c b/drivers/acpi/executer/exmutex.c
index 32f24a8..b8d035c 100644
--- a/drivers/acpi/executer/exmutex.c
+++ b/drivers/acpi/executer/exmutex.c
@@ -156,6 +156,10 @@
ACPI_FUNCTION_TRACE_PTR(ex_acquire_mutex_object, obj_desc);
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
/* Support for multiple acquires by the owning thread */
if (obj_desc->mutex.thread_id == thread_id) {
@@ -290,6 +294,10 @@
ACPI_FUNCTION_TRACE(ex_release_mutex_object);
+ if (obj_desc->mutex.acquisition_depth == 0) {
+ return (AE_NOT_ACQUIRED);
+ }
+
/* Match multiple Acquires with multiple Releases */
obj_desc->mutex.acquisition_depth--;
@@ -387,17 +395,22 @@
*/
if (obj_desc->mutex.sync_level > walk_state->thread->current_sync_level) {
ACPI_ERROR((AE_INFO,
- "Cannot release Mutex [%4.4s], incorrect SyncLevel",
- acpi_ut_get_node_name(obj_desc->mutex.node)));
+ "Cannot release Mutex [%4.4s], SyncLevel mismatch: mutex %d current %d",
+ acpi_ut_get_node_name(obj_desc->mutex.node),
+ obj_desc->mutex.sync_level,
+ walk_state->thread->current_sync_level));
return_ACPI_STATUS(AE_AML_MUTEX_ORDER);
}
status = acpi_ex_release_mutex_object(obj_desc);
- /* Restore the original sync_level */
+ if (obj_desc->mutex.acquisition_depth == 0) {
- walk_state->thread->current_sync_level =
- obj_desc->mutex.original_sync_level;
+ /* Restore the original sync_level */
+
+ walk_state->thread->current_sync_level =
+ obj_desc->mutex.original_sync_level;
+ }
return_ACPI_STATUS(status);
}