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-rw-r--r--drivers/isdn/gigaset/ev-layer.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/isdn/gigaset/ev-layer.c b/drivers/isdn/gigaset/ev-layer.c
index 2d91049571a4..ff2ec2ce2168 100644
--- a/drivers/isdn/gigaset/ev-layer.c
+++ b/drivers/isdn/gigaset/ev-layer.c
@@ -707,6 +707,11 @@ static void disconnect(struct at_state_t **at_state_p)
if (bcs) {
/* B channel assigned: invoke hardware specific handler */
cs->ops->close_bchannel(bcs);
+ /* notify LL */
+ if (bcs->chstate & (CHS_D_UP | CHS_NOTIFY_LL)) {
+ bcs->chstate &= ~(CHS_D_UP | CHS_NOTIFY_LL);
+ gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DHUP);
+ }
} else {
/* no B channel assigned: just deallocate */
spin_lock_irqsave(&cs->lock, flags);