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[S390] s390/cio: use memory_read_from_buffer()

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Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Akinobu Mita 2008-07-14 09:59:15 +02:00 committed by Heiko Carstens
parent 7785857a5a
commit d9cef21af0
1 changed files with 2 additions and 9 deletions
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11
drivers/s390/cio/chp.c
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@ -143,21 +143,14 @@ static ssize_t chp_measurement_chars_read(struct kobject *kobj,
{
struct channel_path *chp;
struct device *device;
unsigned int size;
device = container_of(kobj, struct device, kobj);
chp = to_channelpath(device);
if (!chp->cmg_chars)
return 0;
size = sizeof(struct cmg_chars);
if (off > size)
return 0;
if (off + count > size)
count = size - off;
memcpy(buf, chp->cmg_chars + off, count);
return count;
return memory_read_from_buffer(buf, count, &off,
chp->cmg_chars, sizeof(struct cmg_chars));
}
static struct bin_attribute chp_measurement_chars_attr = {