isdn/gigaset: reduce syslog spam

commit 7d060ed2 upstream.

Downgrade some error messages which occur frequently during
normal operation to debug messages.

Impact: logging
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/isdn/gigaset/capi.c

@@ -378,13 +378,13 @@ void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *dskb)
 	++bcs->trans_up;
 
 	if (!ap) {
-		dev_err(cs->dev, "%s: no application\n", __func__);
+		gig_dbg(DEBUG_MCMD, "%s: application gone", __func__);
 		return;
 	}
 
 	/* don't send further B3 messages if disconnected */
 	if (bcs->apconnstate < APCONN_ACTIVE) {
-		gig_dbg(DEBUG_LLDATA, "disconnected, discarding ack");
+		gig_dbg(DEBUG_MCMD, "%s: disconnected", __func__);
 		return;
 	}
 
@@ -422,13 +422,14 @@ void gigaset_skb_rcvd(struct bc_state *bcs, struct sk_buff *skb)
 	bcs->trans_down++;
 
 	if (!ap) {
-		dev_err(cs->dev, "%s: no application\n", __func__);
+		gig_dbg(DEBUG_MCMD, "%s: application gone", __func__);
+		dev_kfree_skb_any(skb);
 		return;
 	}
 
 	/* don't send further B3 messages if disconnected */
 	if (bcs->apconnstate < APCONN_ACTIVE) {
-		gig_dbg(DEBUG_LLDATA, "disconnected, discarding data");
+		gig_dbg(DEBUG_MCMD, "%s: disconnected", __func__);
 		dev_kfree_skb_any(skb);
 		return;
 	}
@@ -747,7 +748,7 @@ void gigaset_isdn_connD(struct bc_state *bcs)
 	ap = bcs->ap;
 	if (!ap) {
 		spin_unlock_irqrestore(&bcs->aplock, flags);
-		dev_err(cs->dev, "%s: no application\n", __func__);
+		gig_dbg(DEBUG_CMD, "%s: application gone", __func__);
 		return;
 	}
 	if (bcs->apconnstate == APCONN_NONE) {
@@ -843,7 +844,7 @@ void gigaset_isdn_connB(struct bc_state *bcs)
 	ap = bcs->ap;
 	if (!ap) {
 		spin_unlock_irqrestore(&bcs->aplock, flags);
-		dev_err(cs->dev, "%s: no application\n", __func__);
+		gig_dbg(DEBUG_CMD, "%s: application gone", __func__);
 		return;
 	}
 	if (!bcs->apconnstate) {
@@ -901,13 +902,12 @@ void gigaset_isdn_connB(struct bc_state *bcs)
  */
 void gigaset_isdn_hupB(struct bc_state *bcs)
 {
-	struct cardstate *cs = bcs->cs;
 	struct gigaset_capi_appl *ap = bcs->ap;
 
 	/* ToDo: assure order of DISCONNECT_B3_IND and DISCONNECT_IND ? */
 
 	if (!ap) {
-		dev_err(cs->dev, "%s: no application\n", __func__);
+		gig_dbg(DEBUG_CMD, "%s: application gone", __func__);
 		return;
 	}