net: hns: Fix object reference leaks in hns_dsaf_roce_reset()

[ 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@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
index 51d42d7f6074cbf8e2a89b751c2516e1bc29ef68..7e82dfbb43403f5e8f6be55e84239f2fe431a913 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
@@ -3074,6 +3074,7 @@ 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;
        }
 
@@ -3081,6 +3082,7 @@ 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;
        }