[PATCH AUTOSEL 4.19 40/44] net: hns: Fix object reference leaks in hns_dsaf_roce_reset()

From: Sasha Levin
Date: Mon Mar 11 2019 - 15:58:21 EST


From: Huang Zijiang <huang.zijiang@xxxxxxxxxx>

[ Upstream commit c969c6e7ab8cb42b5c787c567615474fdbad9d6a ]

The of_find_device_by_node() takes a reference to the underlying device
structure, we should release that reference.

Signed-off-by: Huang Zijiang <huang.zijiang@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
index 3b9e74be5fbd..b8155f5e71b4 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
@@ -3081,6 +3081,7 @@ int hns_dsaf_roce_reset(struct fwnode_handle *dsaf_fwnode, bool dereset)
dsaf_dev = dev_get_drvdata(&pdev->dev);
if (!dsaf_dev) {
dev_err(&pdev->dev, "dsaf_dev is NULL\n");
+ put_device(&pdev->dev);
return -ENODEV;
}

@@ -3088,6 +3089,7 @@ int hns_dsaf_roce_reset(struct fwnode_handle *dsaf_fwnode, bool dereset)
if (AE_IS_VER1(dsaf_dev->dsaf_ver)) {
dev_err(dsaf_dev->dev, "%s v1 chip doesn't support RoCE!\n",
dsaf_dev->ae_dev.name);
+ put_device(&pdev->dev);
return -ENODEV;
}

--
2.19.1