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[PATCH 3.16 246/306] of_mdio: fix node leak in of_phy_register_fixed_link error path

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  [PATCH 3.16 246/306] of_mdio: fix node leak in of_phy_register_fixed_link  error path Ben Hutchings <ben@decadent.org.uk> - 2017-02-16 00:20 +0100

#1581853 — [PATCH 3.16 246/306] of_mdio: fix node leak in of_phy_register_fixed_link error path

3.16.40-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Johan Hovold <johan@kernel.org>

commit 48c1699d5335bc045b50989a06b1c526b17a25ff upstream.

Make sure to drop the of_node reference also on failure to parse the
speed property in of_phy_register_fixed_link().

Fixes: 3be2a49e5c08 ("of: provide a binding for fixed link PHYs")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
 drivers/of/of_mdio.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -291,8 +291,11 @@ int of_phy_register_fixed_link(struct de
 		status.link = 1;
 		status.duplex = of_property_read_bool(fixed_link_node,
 						      "full-duplex");
-		if (of_property_read_u32(fixed_link_node, "speed", &status.speed))
+		if (of_property_read_u32(fixed_link_node, "speed",
+					 &status.speed)) {
+			of_node_put(fixed_link_node);
 			return -EINVAL;
+		}
 		status.pause = of_property_read_bool(fixed_link_node, "pause");
 		status.asym_pause = of_property_read_bool(fixed_link_node,
 							  "asym-pause");

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