From 55a6af9749d6a31e087f304f2ea39db3bb7b3f3e Mon Sep 17 00:00:00 2001
From: Martin Bachem <m.bachem@gmx.de>
Date: Thu, 4 Sep 2008 12:42:39 +0200
Subject: [PATCH] mISDN: Return error on E-channel access
Return error on D-channel access with E-channel data requested
Signed-off-by: Martin Bachem <m.bachem@gmx.de>
Signed-off-by: Karsten Keil <kkeil@suse.de>
---
drivers/isdn/hardware/mISDN/hfcpci.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/isdn/hardware/mISDN/hfcpci.c b/drivers/isdn/hardware/mISDN/hfcpci.c
index 37c2e19c3b00..ea69d5862f6d 100644
--- a/drivers/isdn/hardware/mISDN/hfcpci.c
+++ b/drivers/isdn/hardware/mISDN/hfcpci.c
@@ -1894,6 +1894,10 @@ open_dchannel(struct hfc_pci *hc, struct mISDNchannel *ch,
hc->dch.dev.id, __builtin_return_address(0));
if (rq->protocol == ISDN_P_NONE)
return -EINVAL;
+ if (rq->adr.channel == 1) {
+ /* TODO: E-Channel */
+ return -EINVAL;
+ }
if (!hc->initdone) {
if (rq->protocol == ISDN_P_TE_S0) {
err = create_l1(&hc->dch, hfc_l1callback);
--
2.20.1