phy: brcmstb-sata: add missing of_node_put

for_each_available_child_of_node performs an of_node_get on each iteration,
so a return from the middle of the loop requires an of_node_put.

A simplified version of the semantic patch that finds this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
expression root,e;
local idexpression child;
@@

 for_each_available_child_of_node(root, child) {
   ... when != of_node_put(child)
       when != e = child
(
   return child;
|
*  return ...;
)
   ...
 }
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

diff --git a/drivers/phy/phy-brcmstb-sata.c b/drivers/phy/phy-brcmstb-sata.c
index 8a2cb16a1937d20e88b045868beec28db966be5c..cd9dba8205668d98665d938b13a5e254b74bdb17 100644 (file)
--- a/drivers/phy/phy-brcmstb-sata.c
+++ b/drivers/phy/phy-brcmstb-sata.c
@@ -140,7 +140,7 @@ static int brcm_sata_phy_probe(struct platform_device *pdev)
        struct brcm_sata_phy *priv;
        struct resource *res;
        struct phy_provider *provider;
-       int count = 0;
+       int ret, count = 0;
 
        if (of_get_child_count(dn) == 0)
                return -ENODEV;
@@ -163,16 +163,19 @@ static int brcm_sata_phy_probe(struct platform_device *pdev)
                if (of_property_read_u32(child, "reg", &id)) {
                        dev_err(dev, "missing reg property in node %s\n",
                                        child->name);
-                       return -EINVAL;
+                       ret = -EINVAL;
+                       goto put_child;
                }
 
                if (id >= MAX_PORTS) {
                        dev_err(dev, "invalid reg: %u\n", id);
-                       return -EINVAL;
+                       ret = -EINVAL;
+                       goto put_child;
                }
                if (priv->phys[id].phy) {
                        dev_err(dev, "already registered port %u\n", id);
-                       return -EINVAL;
+                       ret = -EINVAL;
+                       goto put_child;
                }
 
                port = &priv->phys[id];
@@ -182,7 +185,8 @@ static int brcm_sata_phy_probe(struct platform_device *pdev)
                port->ssc_en = of_property_read_bool(child, "brcm,enable-ssc");
                if (IS_ERR(port->phy)) {
                        dev_err(dev, "failed to create PHY\n");
-                       return PTR_ERR(port->phy);
+                       ret = PTR_ERR(port->phy);
+                       goto put_child;
                }
 
                phy_set_drvdata(port->phy, port);
@@ -198,6 +202,9 @@ static int brcm_sata_phy_probe(struct platform_device *pdev)
        dev_info(dev, "registered %d port(s)\n", count);
 
        return 0;
+put_child:
+       of_node_put(child);
+       return ret;
 }
 
 static struct platform_driver brcm_sata_phy_driver = {