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gigaset: fix reject/hangup handling

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Signal D channel disconnect in a few cases where it was missed,
including when an incoming call is disconnected before it was
accepted.

Impact: error handling improvement
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tilman Schmidt 2009-10-06 12:18:26 +00:00 committed by David S. Miller
parent 9803f79695
commit 3305adffc5
1 changed files with 5 additions and 0 deletions
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5
drivers/isdn/gigaset/ev-layer.c
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@ -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);