From d4a36e82924d3305a17ac987a510f3902df5a4b2 Mon Sep 17 00:00:00 2001
From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Date: Tue, 28 May 2019 14:04:02 +0900
Subject: [PATCH] phy: renesas: rcar-gen2: Fix memory leak at error paths
Git-commit: d4a36e82924d3305a17ac987a510f3902df5a4b2
Patch-mainline: v5.3-rc1
References: bsc#1051510
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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/phy/renesas/phy-rcar-gen2.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/phy/renesas/phy-rcar-gen2.c
+++ b/drivers/phy/renesas/phy-rcar-gen2.c
@@ -288,6 +288,7 @@ static int rcar_gen2_phy_probe(struct pl
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 pl
&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);