diff --git a/[refs] b/[refs]
index e0301f8eeece..f2859f3e9226 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: bceb0f126f25184eaec3f3c8f00c92b0d899e5de
+refs/heads/master: c56bd0c39ce31e694b6f32223c15bdd582263a3f
diff --git a/trunk/drivers/isdn/gigaset/isocdata.c b/trunk/drivers/isdn/gigaset/isocdata.c
index db3a1e4cd489..bed38fcc432b 100644
--- a/trunk/drivers/isdn/gigaset/isocdata.c
+++ b/trunk/drivers/isdn/gigaset/isocdata.c
@@ -174,12 +174,6 @@ int gigaset_isowbuf_getbytes(struct isowbuf_t *iwb, int size)
 		pr_err("invalid size %d\n", size);
 		return -EINVAL;
 	}
-	src = iwb->read;
-	if (unlikely(limit >= BAS_OUTBUFSIZE + BAS_OUTBUFPAD ||
-		     (read < src && limit >= src))) {
-		pr_err("isoc write buffer frame reservation violated\n");
-		return -EFAULT;
-	}
 #endif
 
 	if (read < write) {