gigaset: beyond ARRAY_SIZE of iwb->data

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/isdn/gigaset/isocdata.c b/drivers/isdn/gigaset/isocdata.c
index b171e75..29808c4 100644 (file)
--- a/drivers/isdn/gigaset/isocdata.c
+++ b/drivers/isdn/gigaset/isocdata.c
@@ -175,7 +175,7 @@ int gigaset_isowbuf_getbytes(struct isowbuf_t *iwb, int size)
                return -EINVAL;
        }
        src = iwb->read;
-       if (unlikely(limit > BAS_OUTBUFSIZE + BAS_OUTBUFPAD ||
+       if (unlikely(limit >= BAS_OUTBUFSIZE + BAS_OUTBUFPAD ||
                     (read < src && limit >= src))) {
                pr_err("isoc write buffer frame reservation violated\n");
                return -EFAULT;