From: Yoshihiro Shimoda yoshihiro.shimoda.uh@renesas.com
[ Upstream commit d4a36e82924d3305a17ac987a510f3902df5a4b2 ]
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: 1233f59f745b237 ("phy: Renesas R-Car Gen2 PHY driver") Signed-off-by: Yoshihiro Shimoda yoshihiro.shimoda.uh@renesas.com Reviewed-by: Geert Uytterhoeven geert+renesas@glider.be Signed-off-by: Kishon Vijay Abraham I kishon@ti.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/phy/phy-rcar-gen2.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/phy/phy-rcar-gen2.c b/drivers/phy/phy-rcar-gen2.c index 97d4dd6ea924..aa02b19b7e0e 100644 --- a/drivers/phy/phy-rcar-gen2.c +++ b/drivers/phy/phy-rcar-gen2.c @@ -288,6 +288,7 @@ 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]; @@ -303,6 +304,7 @@ 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);