[PATCH 5.4 19/48] xgene-v2: Fix a resource leak in the error handling path of xge_probe()

From: Greg Kroah-Hartman
Date: Wed Sep 01 2021 - 08:33:04 EST


From: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>

[ Upstream commit 5ed74b03eb4d08f5dd281dcb5f1c9bb92b363a8d ]

A successful 'xge_mdio_config()' call should be balanced by a corresponding
'xge_mdio_remove()' call in the error handling path of the probe, as
already done in the remove function.

Update the error handling path accordingly.

Fixes: ea8ab16ab225 ("drivers: net: xgene-v2: Add MDIO support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/apm/xgene-v2/main.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/apm/xgene-v2/main.c b/drivers/net/ethernet/apm/xgene-v2/main.c
index 02b4f3af02b5..848be6bf2fd1 100644
--- a/drivers/net/ethernet/apm/xgene-v2/main.c
+++ b/drivers/net/ethernet/apm/xgene-v2/main.c
@@ -677,11 +677,13 @@ static int xge_probe(struct platform_device *pdev)
ret = register_netdev(ndev);
if (ret) {
netdev_err(ndev, "Failed to register netdev\n");
- goto err;
+ goto err_mdio_remove;
}

return 0;

+err_mdio_remove:
+ xge_mdio_remove(ndev);
err:
free_netdev(ndev);

--
2.30.2