瀏覽代碼

ACPICA: Update for automatic repair code for objects returned by evaluate_object

ACPICA commit 6b58810b9aad7358fbf1a0f4057fefa8d29838d3

This change fixes two instances where the repair code made an incorrect
assumption about how reference counts are assigned to package objects.
Resolves issues where a warning was issued about a "large reference
count" -- which usually indicates an attempt to delete an object
that has previously been poisoned and released into the object cache.

Link: https://github.com/acpica/acpica/commit/6b58810b
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Bob Moore 8 年之前
父節點
當前提交
ed7f8bc91a
共有 2 個文件被更改,包括 4 次插入18 次删除
  1. 3 13
      drivers/acpi/acpica/nsrepair.c
  2. 1 5
      drivers/acpi/acpica/nsrepair2.c

+ 3 - 13
drivers/acpi/acpica/nsrepair.c

@@ -290,22 +290,12 @@ object_repaired:
 	/* Object was successfully repaired */
 
 	if (package_index != ACPI_NOT_PACKAGE_ELEMENT) {
-		/*
-		 * The original object is a package element. We need to
-		 * decrement the reference count of the original object,
-		 * for removing it from the package.
-		 *
-		 * However, if the original object was just wrapped with a
-		 * package object as part of the repair, we don't need to
-		 * change the reference count.
-		 */
+
+		/* Update reference count of new object */
+
 		if (!(info->return_flags & ACPI_OBJECT_WRAPPED)) {
 			new_object->common.reference_count =
 			    return_object->common.reference_count;
-
-			if (return_object->common.reference_count > 1) {
-				return_object->common.reference_count--;
-			}
 		}
 
 		ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,

+ 1 - 5
drivers/acpi/acpica/nsrepair2.c

@@ -403,16 +403,12 @@ acpi_ns_repair_CID(struct acpi_evaluate_info *info,
 			return (status);
 		}
 
-		/* Take care with reference counts */
-
 		if (original_element != *element_ptr) {
 
-			/* Element was replaced */
+			/* Update reference count of new object */
 
 			(*element_ptr)->common.reference_count =
 			    original_ref_count;
-
-			acpi_ut_remove_reference(original_element);
 		}
 
 		element_ptr++;