1 files changed, 15 insertions, 14 deletions

diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c
index 1c53b5546927..f999798a5612 100644
--- a/drivers/net/wan/fsl_ucc_hdlc.c
+++ b/drivers/net/wan/fsl_ucc_hdlc.c
@@ -34,6 +34,8 @@
 #define TDM_PPPOHT_SLIC_MAXIN
 #define RX_BD_ERRORS (R_CD_S | R_OV_S | R_CR_S | R_AB_S | R_NO_S | R_LG_S)
 
+static int uhdlc_close(struct net_device *dev);
+
 static struct ucc_tdm_info utdm_primary_info = {
 	.uf_info = {
 		.tsa = 0,
@@ -708,6 +710,7 @@ static int uhdlc_open(struct net_device *dev)
 	hdlc_device *hdlc = dev_to_hdlc(dev);
 	struct ucc_hdlc_private *priv = hdlc->priv;
 	struct ucc_tdm *utdm = priv->utdm;
+	int rc = 0;
 
 	if (priv->hdlc_busy != 1) {
 		if (request_irq(priv->ut_info->uf_info.irq,
@@ -731,10 +734,13 @@ static int uhdlc_open(struct net_device *dev)
 		napi_enable(&priv->napi);
 		netdev_reset_queue(dev);
 		netif_start_queue(dev);
-		hdlc_open(dev);
+
+		rc = hdlc_open(dev);
+		if (rc)
+			uhdlc_close(dev);
 	}
 
-	return 0;
+	return rc;
 }
 
 static void uhdlc_memclean(struct ucc_hdlc_private *priv)
@@ -824,6 +830,8 @@ static int uhdlc_close(struct net_device *dev)
 	netdev_reset_queue(dev);
 	priv->hdlc_busy = 0;
 
+	hdlc_close(dev);
+
 	return 0;
 }
 
@@ -1177,14 +1185,9 @@ static int ucc_hdlc_probe(struct platform_device *pdev)
 	uhdlc_priv->dev = &pdev->dev;
 	uhdlc_priv->ut_info = ut_info;
 
-	if (of_get_property(np, "fsl,tdm-interface", NULL))
-		uhdlc_priv->tsa = 1;
-
-	if (of_get_property(np, "fsl,ucc-internal-loopback", NULL))
-		uhdlc_priv->loopback = 1;
-
-	if (of_get_property(np, "fsl,hdlc-bus", NULL))
-		uhdlc_priv->hdlc_bus = 1;
+	uhdlc_priv->tsa = of_property_read_bool(np, "fsl,tdm-interface");
+	uhdlc_priv->loopback = of_property_read_bool(np, "fsl,ucc-internal-loopback");
+	uhdlc_priv->hdlc_bus = of_property_read_bool(np, "fsl,hdlc-bus");
 
 	if (uhdlc_priv->tsa == 1) {
 		utdm = kzalloc(sizeof(*utdm), GFP_KERNEL);
@@ -1256,7 +1259,7 @@ free_uhdlc_priv:
 	return ret;
 }
 
-static int ucc_hdlc_remove(struct platform_device *pdev)
+static void ucc_hdlc_remove(struct platform_device *pdev)
 {
 	struct ucc_hdlc_private *priv = dev_get_drvdata(&pdev->dev);
 
@@ -1274,8 +1277,6 @@ static int ucc_hdlc_remove(struct platform_device *pdev)
 	kfree(priv);
 
 	dev_info(&pdev->dev, "UCC based hdlc module removed\n");
-
-	return 0;
 }
 
 static const struct of_device_id fsl_ucc_hdlc_of_match[] = {
@@ -1289,7 +1290,7 @@ MODULE_DEVICE_TABLE(of, fsl_ucc_hdlc_of_match);
 
 static struct platform_driver ucc_hdlc_driver = {
 	.probe	= ucc_hdlc_probe,
-	.remove	= ucc_hdlc_remove,
+	.remove = ucc_hdlc_remove,
 	.driver	= {
 		.name		= DRV_NAME,
 		.pm		= HDLC_PM_OPS,