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| author |   Akinobu Mita <akinobu.mita@gmail.com> | 2008-06-09 16:22:26 -0700 |
|---|---|---|
| committer |   Len Brown <len.brown@intel.com> | 2008-06-11 19:13:47 -0400 |
| commit | 46a21e465e506bcd4dba759a39e7ef79978a705d (patch) | |
| tree | aaaaf8b80209ee910d1bb8afd2dee16171e0cea4 /drivers/acpi/system.c | |
| parent | bay: exit if notify handler cannot be installed (diff) | |
| download | linux-dev-46a21e465e506bcd4dba759a39e7ef79978a705d.tar.xz linux-dev-46a21e465e506bcd4dba759a39e7ef79978a705d.zip | |
ACPI: use memory_read_from_buffer()
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/system.c')
| -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 769f24855eb6..5bd2dec9a7ac 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, |