Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[karo-tx-linux.git] / drivers / s390 / char / sclp_async.c

diff --git a/drivers/s390/char/sclp_async.c b/drivers/s390/char/sclp_async.c
index 2aecf7f21361b9d430b531e9b6697a8515a84923..7ad30e72f868de1e45ef7e4bdd81cfa8a4701ca4 100644 (file)
--- a/drivers/s390/char/sclp_async.c
+++ b/drivers/s390/char/sclp_async.c
@@ -85,7 +85,7 @@ static int proc_handler_callhome(struct ctl_table *ctl, int write,
                rc = copy_from_user(buf, buffer, sizeof(buf));
                if (rc != 0)
                        return -EFAULT;
-               buf[len - 1] = '\0';
+               buf[sizeof(buf) - 1] = '\0';
                if (strict_strtoul(buf, 0, &val) != 0)
                        return -EINVAL;
                if (val != 0 && val != 1)