* [PATCH] net: hns: Fix memleak in hns_nic_dev_probe
@ 2020-08-24 5:44 Dinghao Liu
2020-08-24 12:54 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: Dinghao Liu @ 2020-08-24 5:44 UTC (permalink / raw)
To: dinghao.liu, kjlu
Cc: Yisen Zhuang, Salil Mehta, David S. Miller, Jakub Kicinski,
Heiner Kallweit, Jason A. Donenfeld, Shannon Nelson,
Michael S. Tsirkin, Yonglong Liu, Kejian Yan, netdev,
linux-kernel
hns_nic_dev_probe allocates ndev, but not free it on
two error handling paths, which may lead to memleak.
Fixes: 63434888aaf1b ("net: hns: net: hns: enet adds support of acpi")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
---
drivers/net/ethernet/hisilicon/hns/hns_enet.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index 23f278e46975..22522f8a5299 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -2282,8 +2282,10 @@ static int hns_nic_dev_probe(struct platform_device *pdev)
priv->enet_ver = AE_VERSION_1;
else if (acpi_dev_found(hns_enet_acpi_match[1].id))
priv->enet_ver = AE_VERSION_2;
- else
- return -ENXIO;
+ else {
+ ret = -ENXIO;
+ goto out_read_prop_fail;
+ }
/* try to find port-idx-in-ae first */
ret = acpi_node_get_property_reference(dev->fwnode,
@@ -2299,7 +2301,8 @@ static int hns_nic_dev_probe(struct platform_device *pdev)
priv->fwnode = args.fwnode;
} else {
dev_err(dev, "cannot read cfg data from OF or acpi\n");
- return -ENXIO;
+ ret = -ENXIO;
+ goto out_read_prop_fail;
}
ret = device_property_read_u32(dev, "port-idx-in-ae", &port_id);
--
2.17.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] net: hns: Fix memleak in hns_nic_dev_probe
2020-08-24 5:44 [PATCH] net: hns: Fix memleak in hns_nic_dev_probe Dinghao Liu
@ 2020-08-24 12:54 ` David Miller
0 siblings, 0 replies; 2+ messages in thread
From: David Miller @ 2020-08-24 12:54 UTC (permalink / raw)
To: dinghao.liu
Cc: kjlu, yisen.zhuang, salil.mehta, kuba, hkallweit1, Jason,
snelson, mst, liuyonglong, yankejian, netdev, linux-kernel
From: Dinghao Liu <dinghao.liu@zju.edu.cn>
Date: Mon, 24 Aug 2020 13:44:42 +0800
> hns_nic_dev_probe allocates ndev, but not free it on
> two error handling paths, which may lead to memleak.
>
> Fixes: 63434888aaf1b ("net: hns: net: hns: enet adds support of acpi")
> Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Applied and queued up for -stable, thanks.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-08-24 5:44 [PATCH] net: hns: Fix memleak in hns_nic_dev_probe Dinghao Liu
2020-08-24 12:54 ` David Miller
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