[PATCH 3/4] net: dsa: remove NULL check for priv and platform data

[Michael Walle]

Because the uclass has the "*_auto" properties set, the driver model
will take care of allocating the private structures for us and they
can't be NULL. Drop the checks.

Signed-off-by: Michael Walle <mich...@walle.cc>
---
 net/dsa-uclass.c | 21 +++++++--------------
 1 file changed, 7 insertions(+), 14 deletions(-)

diff --git a/net/dsa-uclass.c b/net/dsa-uclass.c
index 7898f30e15..d453cc6930 100644
--- a/net/dsa-uclass.c
+++ b/net/dsa-uclass.c
@@ -28,8 +28,8 @@ int dsa_set_tagging(struct udevice *dev, ushort headroom, 
ushort tailroom)
 {
        struct dsa_priv *priv;
 
-       if (!dev || !dev_get_uclass_priv(dev))
-               return -ENODEV;
+       if (!dev)
+               return -EINVAL;
 
        if (headroom + tailroom > DSA_MAX_OVR)
                return -EINVAL;
@@ -47,11 +47,13 @@ int dsa_set_tagging(struct udevice *dev, ushort headroom, 
ushort tailroom)
 /* returns the DSA master Ethernet device */
 struct udevice *dsa_get_master(struct udevice *dev)
 {
-       struct dsa_priv *priv = dev_get_uclass_priv(dev);
+       struct dsa_priv *priv;
 
-       if (!priv)
+       if (!dev)
                return NULL;
 
+       priv = dev_get_uclass_priv(dev);
+
        return priv->master_dev;
 }
 
@@ -67,9 +69,6 @@ static int dsa_port_start(struct udevice *pdev)
        struct dsa_ops *ops = dsa_get_ops(dev);
        int err;
 
-       if (!priv)
-               return -ENODEV;
-
        if (!master) {
                dev_err(pdev, "DSA master Ethernet device not found!\n");
                return -EINVAL;
@@ -101,9 +100,6 @@ static void dsa_port_stop(struct udevice *pdev)
        struct udevice *master = dsa_get_master(dev);
        struct dsa_ops *ops = dsa_get_ops(dev);
 
-       if (!priv)
-               return;
-
        if (ops->port_disable) {
                struct dsa_port_pdata *port_pdata;
 
@@ -347,7 +343,7 @@ static int dsa_post_bind(struct udevice *dev)
        ofnode node = dev_ofnode(dev), pnode;
        int i, err, first_err = 0;
 
-       if (!pdata || !ofnode_valid(node))
+       if (!ofnode_valid(node))
                return -ENODEV;
 
        pdata->master_node = ofnode_null();
@@ -459,9 +455,6 @@ static int dsa_pre_probe(struct udevice *dev)
        struct dsa_pdata *pdata = dev_get_uclass_plat(dev);
        struct dsa_priv *priv = dev_get_uclass_priv(dev);
 
-       if (!pdata || !priv)
-               return -ENODEV;
-
        priv->num_ports = pdata->num_ports;
        priv->cpu_port = pdata->cpu_port;
        priv->cpu_port_fixed_phy = fixed_phy_create(pdata->cpu_port_node);
-- 
2.20.1