lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date:	Tue, 8 Oct 2013 11:26:41 +0800
From:	Wei Yongjun <weiyj.lk@...il.com>
To:	grant.likely@...aro.org, rob.herring@...xeda.com,
	davem@...emloft.net, jg1.han@...sung.com, b.zolnierkie@...sung.com,
	kyungmin.park@...sung.com
Cc:	yongjun_wei@...ndmicro.com.cn, netdev@...r.kernel.org
Subject: [PATCH] moxa: fix the error handling in moxart_mac_probe()

From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>

This patch fix the error handling in moxart_mac_probe():
 - return -ENOMEM in some memory alloc fail cases
 - add missing free_netdev() in the error handling case

Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
---
 drivers/net/ethernet/moxa/moxart_ether.c | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/moxa/moxart_ether.c b/drivers/net/ethernet/moxa/moxart_ether.c
index bd1a2d2..ea54d95 100644
--- a/drivers/net/ethernet/moxa/moxart_ether.c
+++ b/drivers/net/ethernet/moxa/moxart_ether.c
@@ -448,7 +448,8 @@ static int moxart_mac_probe(struct platform_device *pdev)
 	irq = irq_of_parse_and_map(node, 0);
 	if (irq <= 0) {
 		netdev_err(ndev, "irq_of_parse_and_map failed\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto irq_map_fail;
 	}
 
 	priv = netdev_priv(ndev);
@@ -472,24 +473,32 @@ static int moxart_mac_probe(struct platform_device *pdev)
 	priv->tx_desc_base = dma_alloc_coherent(NULL, TX_REG_DESC_SIZE *
 						TX_DESC_NUM, &priv->tx_base,
 						GFP_DMA | GFP_KERNEL);
-	if (priv->tx_desc_base == NULL)
+	if (priv->tx_desc_base == NULL) {
+		ret = -ENOMEM;
 		goto init_fail;
+	}
 
 	priv->rx_desc_base = dma_alloc_coherent(NULL, RX_REG_DESC_SIZE *
 						RX_DESC_NUM, &priv->rx_base,
 						GFP_DMA | GFP_KERNEL);
-	if (priv->rx_desc_base == NULL)
+	if (priv->rx_desc_base == NULL) {
+		ret = -ENOMEM;
 		goto init_fail;
+	}
 
 	priv->tx_buf_base = kmalloc(priv->tx_buf_size * TX_DESC_NUM,
 				    GFP_ATOMIC);
-	if (!priv->tx_buf_base)
+	if (!priv->tx_buf_base) {
+		ret = -ENOMEM;
 		goto init_fail;
+	}
 
 	priv->rx_buf_base = kmalloc(priv->rx_buf_size * RX_DESC_NUM,
 				    GFP_ATOMIC);
-	if (!priv->rx_buf_base)
+	if (!priv->rx_buf_base) {
+		ret = -ENOMEM;
 		goto init_fail;
+	}
 
 	platform_set_drvdata(pdev, ndev);
 
@@ -522,7 +531,8 @@ static int moxart_mac_probe(struct platform_device *pdev)
 init_fail:
 	netdev_err(ndev, "init failed\n");
 	moxart_mac_free_memory(ndev);
-
+irq_map_fail:
+	free_netdev(ndev);
 	return ret;
 }
 

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Powered by blists - more mailing lists