isdn/gigaset: fix CAPI disconnect B3 handling

If DISCONNECT_B3_IND was synthesized because of a DISCONNECT_REQ
with existing logical connections, the connection state wasn't
updated accordingly. Also the emitted DISCONNECT_B3_IND message
wasn't included in the debug log as requested.
This patch fixes both of these issues.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
CC: stable <stable@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c
index 292ca2fc852c..579aa021a659 100644
--- a/drivers/isdn/gigaset/capi.c
+++ b/drivers/isdn/gigaset/capi.c
@@ -1887,6 +1887,9 @@ static void do_disconnect_req(struct gigaset_capi_ctr *iif,
 
         /* check for active logical connection */
         if (bcs->apconnstate >= APCONN_ACTIVE) {
+                /* clear it */
+                bcs->apconnstate = APCONN_SETUP;
+
                 /*
                  * emit DISCONNECT_B3_IND with cause 0x3301
                  * use separate cmsg structure, as the content of iif->acmsg
@@ -1911,6 +1914,7 @@ static void do_disconnect_req(struct gigaset_capi_ctr *iif,
                 }
                 capi_cmsg2message(b3cmsg,
                                   __skb_put(b3skb, CAPI_DISCONNECT_B3_IND_BASELEN));
+                dump_cmsg(DEBUG_CMD, __func__, b3cmsg);
                 kfree(b3cmsg);
                 capi_ctr_handle_message(&iif->ctr, ap->id, b3skb);
         }