diff options
Diffstat (limited to 'drivers/acpi/executer/exfldio.c')
| -rw-r--r-- | drivers/acpi/executer/exfldio.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/acpi/executer/exfldio.c b/drivers/acpi/executer/exfldio.c index 3b7c4352ec57..051053f7cccb 100644 --- a/drivers/acpi/executer/exfldio.c +++ b/drivers/acpi/executer/exfldio.c @@ -785,6 +785,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, { acpi_status status; acpi_integer mask; + acpi_integer width_mask; acpi_integer merged_datum; acpi_integer raw_datum = 0; u32 field_offset = 0; @@ -809,8 +810,11 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, /* Compute the number of datums (access width data items) */ + width_mask = + ACPI_MASK_BITS_ABOVE(obj_desc->common_field.access_bit_width); mask = - ACPI_MASK_BITS_BELOW(obj_desc->common_field.start_field_bit_offset); + width_mask & ACPI_MASK_BITS_BELOW(obj_desc->common_field. + start_field_bit_offset); datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length, obj_desc->common_field.access_bit_width); @@ -850,7 +854,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, merged_datum = raw_datum >> (obj_desc->common_field.access_bit_width - obj_desc->common_field.start_field_bit_offset); - mask = ACPI_INTEGER_MAX; + mask = width_mask; if (i == datum_count) { break; |