1 files changed, 87 insertions, 57 deletions

diff --git a/drivers/acpi/resources/rscreate.c b/drivers/acpi/resources/rscreate.c
index 7f46ca0bf33a..8c128dea3252 100644
--- a/drivers/acpi/resources/rscreate.c
+++ b/drivers/acpi/resources/rscreate.c
@@ -207,14 +207,20 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
                 /* Each element of the top-level package must also be a package */
 
                 if (ACPI_GET_OBJECT_TYPE(*top_object_list) != ACPI_TYPE_PACKAGE) {
-                        ACPI_REPORT_ERROR(("(PRT[%X]) Need sub-package, found %s\n", index, acpi_ut_get_object_type_name(*top_object_list)));
+                        ACPI_ERROR((AE_INFO,
+                                    "(PRT[%X]) Need sub-package, found %s",
+                                    index,
+                                    acpi_ut_get_object_type_name
+                                    (*top_object_list)));
                         return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
                 }
 
                 /* Each sub-package must be of length 4 */
 
                 if ((*top_object_list)->package.count != 4) {
-                        ACPI_REPORT_ERROR(("(PRT[%X]) Need package of length 4, found length %d\n", index, (*top_object_list)->package.count));
+                        ACPI_ERROR((AE_INFO,
+                                    "(PRT[%X]) Need package of length 4, found length %d",
+                                    index, (*top_object_list)->package.count));
                         return_ACPI_STATUS(AE_AML_PACKAGE_LIMIT);
                 }
 
@@ -231,7 +237,10 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
                 if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
                         user_prt->address = obj_desc->integer.value;
                 } else {
-                        ACPI_REPORT_ERROR(("(PRT[%X].Address) Need Integer, found %s\n", index, acpi_ut_get_object_type_name(obj_desc)));
+                        ACPI_ERROR((AE_INFO,
+                                    "(PRT[%X].Address) Need Integer, found %s",
+                                    index,
+                                    acpi_ut_get_object_type_name(obj_desc)));
                         return_ACPI_STATUS(AE_BAD_DATA);
                 }
 
@@ -241,65 +250,83 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
                 if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
                         user_prt->pin = (u32) obj_desc->integer.value;
                 } else {
-                        ACPI_REPORT_ERROR(("(PRT[%X].Pin) Need Integer, found %s\n", index, acpi_ut_get_object_type_name(obj_desc)));
+                        ACPI_ERROR((AE_INFO,
+                                    "(PRT[%X].Pin) Need Integer, found %s",
+                                    index,
+                                    acpi_ut_get_object_type_name(obj_desc)));
                         return_ACPI_STATUS(AE_BAD_DATA);
                 }
 
-                /* 3) Third subobject: Dereference the PRT.source_name */
-
+                /*
+                 * 3) Third subobject: Dereference the PRT.source_name
+                 * The name may be unresolved (slack mode), so allow a null object
+                 */
                 obj_desc = sub_object_list[2];
-                switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
-                case ACPI_TYPE_LOCAL_REFERENCE:
-
-                        if (obj_desc->reference.opcode != AML_INT_NAMEPATH_OP) {
-                                ACPI_REPORT_ERROR(("(PRT[%X].Source) Need name, found reference op %X\n", index, obj_desc->reference.opcode));
+                if (obj_desc) {
+                        switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+                        case ACPI_TYPE_LOCAL_REFERENCE:
+
+                                if (obj_desc->reference.opcode !=
+                                    AML_INT_NAMEPATH_OP) {
+                                        ACPI_ERROR((AE_INFO,
+                                                    "(PRT[%X].Source) Need name, found reference op %X",
+                                                    index,
+                                                    obj_desc->reference.
+                                                    opcode));
+                                        return_ACPI_STATUS(AE_BAD_DATA);
+                                }
+
+                                node = obj_desc->reference.node;
+
+                                /* Use *remaining* length of the buffer as max for pathname */
+
+                                path_buffer.length = output_buffer->length -
+                                    (u32) ((u8 *) user_prt->source -
+                                           (u8 *) output_buffer->pointer);
+                                path_buffer.pointer = user_prt->source;
+
+                                status =
+                                    acpi_ns_handle_to_pathname((acpi_handle)
+                                                               node,
+                                                               &path_buffer);
+
+                                /* +1 to include null terminator */
+
+                                user_prt->length +=
+                                    (u32) ACPI_STRLEN(user_prt->source) + 1;
+                                break;
+
+                        case ACPI_TYPE_STRING:
+
+                                ACPI_STRCPY(user_prt->source,
+                                            obj_desc->string.pointer);
+
+                                /*
+                                 * Add to the Length field the length of the string
+                                 * (add 1 for terminator)
+                                 */
+                                user_prt->length += obj_desc->string.length + 1;
+                                break;
+
+                        case ACPI_TYPE_INTEGER:
+                                /*
+                                 * If this is a number, then the Source Name is NULL, since the
+                                 * entire buffer was zeroed out, we can leave this alone.
+                                 *
+                                 * Add to the Length field the length of the u32 NULL
+                                 */
+                                user_prt->length += sizeof(u32);
+                                break;
+
+                        default:
+
+                                ACPI_ERROR((AE_INFO,
+                                            "(PRT[%X].Source) Need Ref/String/Integer, found %s",
+                                            index,
+                                            acpi_ut_get_object_type_name
+                                            (obj_desc)));
                                 return_ACPI_STATUS(AE_BAD_DATA);
                         }
-
-                        node = obj_desc->reference.node;
-
-                        /* Use *remaining* length of the buffer as max for pathname */
-
-                        path_buffer.length = output_buffer->length -
-                            (u32) ((u8 *) user_prt->source -
-                                   (u8 *) output_buffer->pointer);
-                        path_buffer.pointer = user_prt->source;
-
-                        status =
-                            acpi_ns_handle_to_pathname((acpi_handle) node,
-                                                       &path_buffer);
-
-                        /* +1 to include null terminator */
-
-                        user_prt->length +=
-                            (u32) ACPI_STRLEN(user_prt->source) + 1;
-                        break;
-
-                case ACPI_TYPE_STRING:
-
-                        ACPI_STRCPY(user_prt->source, obj_desc->string.pointer);
-
-                        /*
-                         * Add to the Length field the length of the string
-                         * (add 1 for terminator)
-                         */
-                        user_prt->length += obj_desc->string.length + 1;
-                        break;
-
-                case ACPI_TYPE_INTEGER:
-                        /*
-                         * If this is a number, then the Source Name is NULL, since the
-                         * entire buffer was zeroed out, we can leave this alone.
-                         *
-                         * Add to the Length field the length of the u32 NULL
-                         */
-                        user_prt->length += sizeof(u32);
-                        break;
-
-                default:
-
-                        ACPI_REPORT_ERROR(("(PRT[%X].Source) Need Ref/String/Integer, found %s\n", index, acpi_ut_get_object_type_name(obj_desc)));
-                        return_ACPI_STATUS(AE_BAD_DATA);
                 }
 
                 /* Now align the current length */
@@ -313,7 +340,10 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
                 if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
                         user_prt->source_index = (u32) obj_desc->integer.value;
                 } else {
-                        ACPI_REPORT_ERROR(("(PRT[%X].source_index) Need Integer, found %s\n", index, acpi_ut_get_object_type_name(obj_desc)));
+                        ACPI_ERROR((AE_INFO,
+                                    "(PRT[%X].source_index) Need Integer, found %s",
+                                    index,
+                                    acpi_ut_get_object_type_name(obj_desc)));
                         return_ACPI_STATUS(AE_BAD_DATA);
                 }