Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Cc: linux390@xxxxxxxxxx
Cc: linux-s390@xxxxxxxxxxxxxxx
---
drivers/s390/cio/chp.c | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)
Index: 2.6-git/drivers/s390/cio/chp.c
===================================================================
--- 2.6-git.orig/drivers/s390/cio/chp.c
+++ 2.6-git/drivers/s390/cio/chp.c
@@ -15,6 +15,7 @@
#include <linux/wait.h>
#include <linux/mutex.h>
#include <linux/errno.h>
+#include <linux/fs.h>
#include <asm/chpid.h>
#include <asm/sclp.h>
@@ -141,21 +142,14 @@ static ssize_t chp_measurement_chars_rea
{
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 = {
--
--
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