1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/isdn/hardware/mISDN/hfcpci.c b/drivers/isdn/hardware/mISDN/hfcpci.c
index 8461477a3ac0..37c2e19c3b00 100644
--- a/drivers/isdn/hardware/mISDN/hfcpci.c
+++ b/drivers/isdn/hardware/mISDN/hfcpci.c
@@ -1964,7 +1964,8 @@ hfc_dctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
         switch (cmd) {
         case OPEN_CHANNEL:
                 rq = arg;
-                if (rq->adr.channel == 0)
+                if ((rq->protocol == ISDN_P_TE_S0) ||
+                    (rq->protocol == ISDN_P_NT_S0))
                         err = open_dchannel(hc, ch, rq);
                 else
                         err = open_bchannel(hc, rq);