---

yaml
---
r: 40143
b: refs/heads/master
c: 6f0f6d8
h: refs/heads/master
i:
  40141: 493bb71
  40139: f2b09d5
  40135: b8b0604
  40127: d737a25
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 718ecac2ed7ae1b3d61388ddbff2938a377b1a11
+refs/heads/master: 6f0f6d87a2a5fc96fc54e90961d5244d668e5fbb

trunk/drivers/net/wan/pc300_drv.c

@@ -2867,7 +2867,6 @@ static int ch_config(pc300dev_t * d)
 	uclong clktype = chan->conf.phys_settings.clock_type;
 	ucshort encoding = chan->conf.proto_settings.encoding;
 	ucshort parity = chan->conf.proto_settings.parity;   
-	int tmc, br;
 	ucchar md0, md2;
 
 	/* Reset the channel */
@@ -2940,8 +2939,12 @@ static int ch_config(pc300dev_t * d)
 		case PC300_RSV:
 		case PC300_X21:
 			if (clktype == CLOCK_INT || clktype == CLOCK_TXINT) {
+				int tmc, br;
+
 				/* Calculate the clkrate parameters */
 				tmc = clock_rate_calc(clkrate, card->hw.clock, &br);
+				if (tmc < 0)
+					return -EIO;
 				cpc_writeb(scabase + M_REG(TMCT, ch), tmc);
 				cpc_writeb(scabase + M_REG(TXS, ch),
 					   (TXS_DTRXC | TXS_IBRG | br));
@@ -3097,14 +3100,16 @@ static int cpc_attach(struct net_device *dev, unsigned short encoding,
 	return 0;
 }
 
-static void cpc_opench(pc300dev_t * d)
+static int cpc_opench(pc300dev_t * d)
 {
 	pc300ch_t *chan = (pc300ch_t *) d->chan;
 	pc300_t *card = (pc300_t *) chan->card;
-	int ch = chan->channel;
+	int ch = chan->channel, rc;
 	void __iomem *scabase = card->hw.scabase;
 
-	ch_config(d);
+	rc = ch_config(d);
+	if (rc)
+		return rc;
 
 	rx_config(d);
 
@@ -3113,6 +3118,8 @@ static void cpc_opench(pc300dev_t * d)
 	/* Assert RTS and DTR */
 	cpc_writeb(scabase + M_REG(CTL, ch),
 		   cpc_readb(scabase + M_REG(CTL, ch)) & ~(CTL_RTS | CTL_DTR));
+
+	return 0;
 }
 
 static void cpc_closech(pc300dev_t * d)
@@ -3168,9 +3175,16 @@ int cpc_open(struct net_device *dev)
 	}
 
 	sprintf(ifr.ifr_name, "%s", dev->name);
-	cpc_opench(d);
+	result = cpc_opench(d);
+	if (result)
+		goto err_out;
+
 	netif_start_queue(dev);
 	return 0;
+
+err_out:
+	hdlc_close(dev);
+	return result;
 }
 
 static int cpc_close(struct net_device *dev)