[PATCH 4.14 32/43] net: sfp: fix memory leak in sfp_probe()

Greg Kroah-Hartman
2022-07-19T12:01:34Z

From: Jianglei Nie <niejianglei2021@163.com>

[ Upstream commit 0a18d802d65cf662644fd1d369c86d84a5630652 ]

sfp_probe() allocates a memory chunk from sfp with sfp_alloc(). When
devm_add_action() fails, sfp is not freed, which leads to a memory leak.

We should use devm_add_action_or_reset() instead of devm_add_action().

Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/20220629075550.2152003-1-niejianglei2021@163.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/phy/sfp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index 9f6e737d9fc9..c0f9de3be217 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -830,7 +830,7 @@ static int sfp_probe(struct platform_device *pdev)

platform_set_drvdata(pdev, sfp);

- err = devm_add_action(sfp->dev, sfp_cleanup, sfp);
+ err = devm_add_action_or_reset(sfp->dev, sfp_cleanup, sfp);
if (err < 0)
return err;

--
2.35.1