* [PATCH] mdio-sun4i: Fix a memory leak
@ 2018-01-06 8:00 Christophe JAILLET
2018-01-08 19:30 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: Christophe JAILLET @ 2018-01-06 8:00 UTC (permalink / raw)
To: andrew, f.fainelli, maxime.ripard, wens
Cc: netdev, linux-arm-kernel, linux-kernel, kernel-janitors,
Christophe JAILLET
If the probing of the regulator is deferred, the memory allocated by
'mdiobus_alloc_size()' will be leaking.
It should be freed before the next call to 'sun4i_mdio_probe()' which will
reallocate it.
Fixes: 4bdcb1dd9feb ("net: Add MDIO bus driver for the Allwinner EMAC")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
drivers/net/phy/mdio-sun4i.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/phy/mdio-sun4i.c b/drivers/net/phy/mdio-sun4i.c
index 135296508a7e..6425ce04d3f9 100644
--- a/drivers/net/phy/mdio-sun4i.c
+++ b/drivers/net/phy/mdio-sun4i.c
@@ -118,8 +118,10 @@ static int sun4i_mdio_probe(struct platform_device *pdev)
data->regulator = devm_regulator_get(&pdev->dev, "phy");
if (IS_ERR(data->regulator)) {
- if (PTR_ERR(data->regulator) == -EPROBE_DEFER)
- return -EPROBE_DEFER;
+ if (PTR_ERR(data->regulator) == -EPROBE_DEFER) {
+ ret = -EPROBE_DEFER;
+ goto err_out_free_mdiobus;
+ }
dev_info(&pdev->dev, "no regulator found\n");
data->regulator = NULL;
--
2.14.1
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH] mdio-sun4i: Fix a memory leak
2018-01-06 8:00 [PATCH] mdio-sun4i: Fix a memory leak Christophe JAILLET
@ 2018-01-08 19:30 ` David Miller
0 siblings, 0 replies; 2+ messages in thread
From: David Miller @ 2018-01-08 19:30 UTC (permalink / raw)
To: christophe.jaillet
Cc: andrew, f.fainelli, maxime.ripard, wens, netdev, linux-arm-kernel,
linux-kernel, kernel-janitors
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Sat, 6 Jan 2018 09:00:09 +0100
> If the probing of the regulator is deferred, the memory allocated by
> 'mdiobus_alloc_size()' will be leaking.
> It should be freed before the next call to 'sun4i_mdio_probe()' which will
> reallocate it.
>
> Fixes: 4bdcb1dd9feb ("net: Add MDIO bus driver for the Allwinner EMAC")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Applied, thank you.
^ permalink raw reply [flat|nested] 2+ messages in thread
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