Messages in this thread Patch in this message | | | From | Miaoqian Lin <> | Subject | [PATCH v2] net: hns: Fix missing put_device() call in hns_mac_register_phy | Date | Wed, 12 Jan 2022 10:39:19 +0000 |
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We need to drop the reference taken by hns_dsaf_find_platform_device Missing put_device() may cause refcount leak.
Fixes: 804ffe5c6197 ("net: hns: support deferred probe when no mdio") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> --- Changes in v2: - add put_device when hns_mac_register_phydev fails. --- drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c index 7edf8569514c..cba9d92e057e 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c @@ -764,13 +764,16 @@ static int hns_mac_register_phy(struct hns_mac_cb *mac_cb) dev_err(mac_cb->dev, "mac%d mdio is NULL, dsaf will probe again later\n", mac_cb->mac_id); + put_device(&pdev->dev); return -EPROBE_DEFER; } rc = hns_mac_register_phydev(mii_bus, mac_cb, addr); - if (!rc) + if (!rc) { dev_dbg(mac_cb->dev, "mac%d register phy addr:%d\n", mac_cb->mac_id, addr); + put_device(&pdev->dev); + } return rc; } -- 2.17.1
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