[S390] channel measurement fix.

Specify correct sizeof() in chp_measurement_read() and return
correct amount of read data.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 72187e54dcac79353107616bac3fb1aec3f1b4d0..4a9da5bdd5359f8f31c4105accbbcad141c01182 100644 (file)
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -918,12 +918,13 @@ chp_measurement_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
        chp = to_channelpath(container_of(kobj, struct device, kobj));
        css = to_css(chp->dev.parent);
 
-       size = sizeof(struct cmg_chars);
+       size = sizeof(struct cmg_entry);
 
        /* Only allow single reads. */
        if (off || count < size)
                return 0;
        chp_measurement_copy_block((struct cmg_entry *)buf, css, chp->id);
+       count = size;
        return count;
 }