From: Bob Moore <robert.moore@xxxxxxxxx>
Prevents infinite loop of 'Large Reference Count' messages in
aslts-bdemo-b286 test.
Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
---
drivers/acpi/dispatcher/dsobject.c | 22 ++++++++++++++++++++++
1 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/dispatcher/dsobject.c b/drivers/acpi/dispatcher/dsobject.c
index 954ac8c..fe28b9a 100644
--- a/drivers/acpi/dispatcher/dsobject.c
+++ b/drivers/acpi/dispatcher/dsobject.c
@@ -370,6 +370,8 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
union acpi_operand_object *obj_desc = NULL;
acpi_status status = AE_OK;
acpi_native_uint i;
+ u16 index;
+ u16 reference_count;
ACPI_FUNCTION_TRACE(ds_build_internal_package_obj);
@@ -447,6 +449,26 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
package.
elements[i]);
}
+
+ if (*obj_desc_ptr) {
+
+ /* Existing package, get existing reference count */
+
+ reference_count =
+ (*obj_desc_ptr)->common.reference_count;
+ if (reference_count > 1) {
+
+ /* Make new element ref count match original ref count */
+
+ for (index = 0; index < (reference_count - 1);
+ index++) {
+ acpi_ut_add_reference((obj_desc->
+ package.
+ elements[i]));
+ }
+ }
+ }
+
arg = arg->common.next;
}
--
1.5.5.29.g7134
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