diff options
| -rw-r--r-- | drivers/acpi/system.c | 15 |
1 files changed, 2 insertions, 13 deletions
diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c index 769f24855eb..5bd2dec9a7a 100644 --- a/drivers/acpi/system.c +++ b/drivers/acpi/system.c @@ -77,7 +77,6 @@ static ssize_t acpi_table_show(struct kobject *kobj, container_of(bin_attr, struct acpi_table_attr, attr); struct acpi_table_header *table_header = NULL; acpi_status status; - ssize_t ret_count = count; status = acpi_get_table(table_attr->name, table_attr->instance, @@ -85,18 +84,8 @@ static ssize_t acpi_table_show(struct kobject *kobj, if (ACPI_FAILURE(status)) return -ENODEV; - if (offset >= table_header->length) { - ret_count = 0; - goto end; - } - - if (offset + ret_count > table_header->length) - ret_count = table_header->length - offset; - - memcpy(buf, ((char *)table_header) + offset, ret_count); - - end: - return ret_count; + return memory_read_from_buffer(buf, count, &offset, + table_header, table_header->length); } static void acpi_table_attr_init(struct acpi_table_attr *table_attr, |