[PATCH] net: bcmgenet: Fix a resource leak in an error handling path in the probe functin

From: Christophe JAILLET
Date: Sat Dec 12 2020 - 13:22:14 EST


If the 'register_netdev()' call fails, we must undo a previous
'bcmgenet_mii_init()' call.

Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
The missing 'bcmgenet_mii_exit()' call is added here, instead of in the
error handling path in order to avoid some goto spaghetti code.
---
drivers/net/ethernet/broadcom/genet/bcmgenet.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index be85dad2e3bc..fcca023f22e5 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -4069,8 +4069,10 @@ static int bcmgenet_probe(struct platform_device *pdev)
clk_disable_unprepare(priv->clk);

err = register_netdev(dev);
- if (err)
+ if (err) {
+ bcmgenet_mii_exit(dev);
goto err;
+ }

return err;

--
2.27.0