| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.18 26/93] net: ethernet: arc: Fix a potential memory leak if an optional regulator is deferred | Date | Fri, 6 Apr 2018 15:22:55 +0200 |
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3.18-stable review patch. If anyone has any objections, please let me know.
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From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ Upstream commit 00777fac28ba3e126b9e63e789a613e8bd2cab25 ]
If the optional regulator is deferred, we must release some resources. They will be re-allocated when the probe function will be called again.
Fixes: 6eacf31139bf ("ethernet: arc: Add support for Rockchip SoC layer device tree bindings") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/net/ethernet/arc/emac_rockchip.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/net/ethernet/arc/emac_rockchip.c +++ b/drivers/net/ethernet/arc/emac_rockchip.c @@ -150,8 +150,10 @@ static int emac_rockchip_probe(struct pl /* Optional regulator for PHY */ priv->regulator = devm_regulator_get_optional(dev, "phy"); if (IS_ERR(priv->regulator)) { - if (PTR_ERR(priv->regulator) == -EPROBE_DEFER) - return -EPROBE_DEFER; + if (PTR_ERR(priv->regulator) == -EPROBE_DEFER) { + err = -EPROBE_DEFER; + goto out_clk_disable; + } dev_err(dev, "no regulator found\n"); priv->regulator = NULL; }
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