This change enables proper handling of NULL package entries in a _PRT
return value, during construction of the PCI routing table.
Lv Zheng.
Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx>
Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx>
---
drivers/acpi/acpica/rscreate.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c
index ca62804..f4cd6ca 100644
--- a/drivers/acpi/acpica/rscreate.c
+++ b/drivers/acpi/acpica/rscreate.c
@@ -292,7 +292,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
/* 1) First subobject: Dereference the PRT.Address */
obj_desc = sub_object_list[0];
- if (obj_desc->common.type != ACPI_TYPE_INTEGER) {
+ if (!obj_desc || obj_desc->common.type != ACPI_TYPE_INTEGER) {
ACPI_ERROR((AE_INFO,
"(PRT[%u].Address) Need Integer, found %s",
index,
@@ -305,7 +305,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
/* 2) Second subobject: Dereference the PRT.Pin */
obj_desc = sub_object_list[1];
- if (obj_desc->common.type != ACPI_TYPE_INTEGER) {
+ if (!obj_desc || obj_desc->common.type != ACPI_TYPE_INTEGER) {
ACPI_ERROR((AE_INFO,
"(PRT[%u].Pin) Need Integer, found %s",
index,
@@ -394,7 +394,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
/* 4) Fourth subobject: Dereference the PRT.source_index */
obj_desc = sub_object_list[3];
- if (obj_desc->common.type != ACPI_TYPE_INTEGER) {
+ if (!obj_desc || obj_desc->common.type != ACPI_TYPE_INTEGER) {
ACPI_ERROR((AE_INFO,
"(PRT[%u].SourceIndex) Need Integer, found %s",
index,
--
1.7.10
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