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Subject[PATCH] phy: renesas: rcar-gen2: Fix memory leak at error paths
Date
This patch fixes memory leak at error paths of the probe function.
In for_each_child_of_node, if the loop returns, the driver should
call of_put_node() before returns.

Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Fixes: 1233f59f745 ("phy: Renesas R-Car Gen2 PHY driver")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
---
drivers/phy/renesas/phy-rcar-gen2.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/phy/renesas/phy-rcar-gen2.c b/drivers/phy/renesas/phy-rcar-gen2.c
index 72eeb06..570b4e4 100644
--- a/drivers/phy/renesas/phy-rcar-gen2.c
+++ b/drivers/phy/renesas/phy-rcar-gen2.c
@@ -285,6 +285,7 @@ static int rcar_gen2_phy_probe(struct platform_device *pdev)
error = of_property_read_u32(np, "reg", &channel_num);
if (error || channel_num > 2) {
dev_err(dev, "Invalid \"reg\" property\n");
+ of_node_put(np);
return error;
}
channel->select_mask = select_mask[channel_num];
@@ -300,6 +301,7 @@ static int rcar_gen2_phy_probe(struct platform_device *pdev)
&rcar_gen2_phy_ops);
if (IS_ERR(phy->phy)) {
dev_err(dev, "Failed to create PHY\n");
+ of_node_put(np);
return PTR_ERR(phy->phy);
}
phy_set_drvdata(phy->phy, phy);
--
2.7.4
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