[PATCH net 0/3] CAIF Bug-fixes.

[PATCH net 0/3] CAIF Bug-fixes.

[Sjur Brændeland]

Some simple bug fixes: plugging memory leaks and fixing the
log-level from err to dbg. I suppose these should go into v3.4.

Regards,
Sjur
--

Kim Lilliestierna (1):
  caif_hsi: use dev_dbg not dev_err for reporting

Sjur Brændeland (1):
  caif-hsi: Free flip_buffer at shutdown

Tomasz Gregorek (1):
  caif: Fix memory leakage in the chnl_net.c.

 drivers/net/caif/caif_hsi.c |    9 +++++----
 net/caif/chnl_net.c         |    9 ++++++---
 2 files changed, 11 insertions(+), 7 deletions(-)

-- 
1.7.5.4

[PATCH net 1/3] caif: Fix memory leakage in the chnl_net.c.

[Sjur Brændeland]

From: Tomasz Gregorek <tomasz.gregorek@stericsson.com>

Added kfree_skb() calls in the chnk_net.c file on
the error paths.

Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
---
 net/caif/chnl_net.c |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/net/caif/chnl_net.c b/net/caif/chnl_net.c
index 93e9c6d..69771c0 100644
--- a/net/caif/chnl_net.c
+++ b/net/caif/chnl_net.c
@@ -103,6 +103,7 @@ static int chnl_recv_cb(struct cflayer *layr, struct cfpkt *pkt)
 		skb->protocol = htons(ETH_P_IPV6);
 		break;
 	default:
+		kfree_skb(skb);
 		priv->netdev->stats.rx_errors++;
 		return -EINVAL;
 	}
@@ -220,14 +221,16 @@ static int chnl_net_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	if (skb->len > priv->netdev->mtu) {
 		pr_warn("Size of skb exceeded MTU\n");
+		kfree_skb(skb);
 		dev->stats.tx_errors++;
-		return -ENOSPC;
+		return NETDEV_TX_OK;
 	}
 
 	if (!priv->flowenabled) {
 		pr_debug("dropping packets flow off\n");
+		kfree_skb(skb);
 		dev->stats.tx_dropped++;
-		return NETDEV_TX_BUSY;
+		return NETDEV_TX_OK;
 	}
 
 	if (priv->conn_req.protocol == CAIFPROTO_DATAGRAM_LOOP)
@@ -242,7 +245,7 @@ static int chnl_net_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	result = priv->chnl.dn->transmit(priv->chnl.dn, pkt);
 	if (result) {
 		dev->stats.tx_dropped++;
-		return result;
+		return NETDEV_TX_OK;
 	}
 
 	/* Update statistics. */
-- 
1.7.5.4

[PATCH net 2/3] caif-hsi: Free flip_buffer at shutdown

[Sjur Brændeland]

Fix memory leak of RX flip-buffer.

Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
---
 drivers/net/caif/caif_hsi.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/caif/caif_hsi.c b/drivers/net/caif/caif_hsi.c
index 9a66e2a..d0d9a6f 100644
--- a/drivers/net/caif/caif_hsi.c
+++ b/drivers/net/caif/caif_hsi.c
@@ -1210,7 +1210,7 @@ int cfhsi_probe(struct platform_device *pdev)
 
 static void cfhsi_shutdown(struct cfhsi *cfhsi)
 {
-	u8 *tx_buf, *rx_buf;
+	u8 *tx_buf, *rx_buf, *flip_buf;
 
 	/* Stop TXing */
 	netif_tx_stop_all_queues(cfhsi->ndev);
@@ -1234,7 +1234,7 @@ static void cfhsi_shutdown(struct cfhsi *cfhsi)
 	/* Store bufferes: will be freed later. */
 	tx_buf = cfhsi->tx_buf;
 	rx_buf = cfhsi->rx_buf;
-
+	flip_buf = cfhsi->rx_flip_buf;
 	/* Flush transmit queues. */
 	cfhsi_abort_tx(cfhsi);
 
@@ -1247,6 +1247,7 @@ static void cfhsi_shutdown(struct cfhsi *cfhsi)
 	/* Free buffers. */
 	kfree(tx_buf);
 	kfree(rx_buf);
+	kfree(flip_buf);
 }
 
 int cfhsi_remove(struct platform_device *pdev)
-- 
1.7.5.4

[PATCH net 3/3] caif_hsi: use dev_dbg not dev_err for reporting

[Sjur Brændeland]

From: Kim Lilliestierna XX <kim.xx.lilliestierna@stericsson.com>

Use dev_dbg instead of dev_err for reporting in cfhsi_wakeup_cb.

Signed-off-by: Kim Lilliestierna <kim.xx.lilliestierna@stericsson.com>
---
 drivers/net/caif/caif_hsi.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/caif/caif_hsi.c b/drivers/net/caif/caif_hsi.c
index d0d9a6f..9c1c8cd 100644
--- a/drivers/net/caif/caif_hsi.c
+++ b/drivers/net/caif/caif_hsi.c
@@ -744,14 +744,14 @@ static void cfhsi_wake_up(struct work_struct *work)
 		size_t fifo_occupancy = 0;
 
 		/* Wakeup timeout */
-		dev_err(&cfhsi->ndev->dev, "%s: Timeout.\n",
+		dev_dbg(&cfhsi->ndev->dev, "%s: Timeout.\n",
 			__func__);
 
 		/* Check FIFO to check if modem has sent something. */
 		WARN_ON(cfhsi->dev->cfhsi_fifo_occupancy(cfhsi->dev,
 					&fifo_occupancy));
 
-		dev_err(&cfhsi->ndev->dev, "%s: Bytes in FIFO: %u.\n",
+		dev_dbg(&cfhsi->ndev->dev, "%s: Bytes in FIFO: %u.\n",
 				__func__, (unsigned) fifo_occupancy);
 
 		/* Check if we misssed the interrupt. */
-- 
1.7.5.4

Re: [PATCH net 0/3] CAIF Bug-fixes.

[David Miller]

From: Sjur Brændeland <sjur.brandeland@stericsson.com>
Date: Thu, 12 Apr 2012 20:18:06 +0200

> Some simple bug fixes: plugging memory leaks and fixing the
> log-level from err to dbg. I suppose these should go into v3.4.

All applied, thanks.