i2c: atr: deduplicate logic in attach_addr()

This is the same logic as in i2c_atr_create_mapping_by_addr().

Signed-off-by: Cosmin Tanislav <demonsingur@gmail.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Romain Gantois <romain.gantois@bootlin.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>

diff --git a/drivers/i2c/i2c-atr.c b/drivers/i2c/i2c-atr.c
index 5f08445ce0a352b001072e2ecd9d615d11c06531..5353de8d3c2e8b91e902e90e3d22f3831d176edc 100644 (file)
--- a/drivers/i2c/i2c-atr.c
+++ b/drivers/i2c/i2c-atr.c
@@ -538,38 +538,20 @@ static int i2c_atr_attach_addr(struct i2c_adapter *adapter,
        struct i2c_atr_chan *chan = adapter->algo_data;
        struct i2c_atr *atr = chan->atr;
        struct i2c_atr_alias_pair *c2a;
-       u16 alias;
-       int ret;
-
-       ret = i2c_atr_reserve_alias(chan->alias_pool);
-       if (ret < 0) {
-               dev_err(atr->dev, "failed to find a free alias\n");
-               return ret;
-       }
-
-       alias = ret;
+       int ret = 0;
 
        mutex_lock(&chan->alias_pairs_lock);
 
-       c2a = i2c_atr_create_c2a(chan, alias, addr);
+       c2a = i2c_atr_create_mapping_by_addr(chan, addr);
        if (!c2a) {
-               ret = -ENOMEM;
-               goto err_release_alias;
+               dev_err(atr->dev, "failed to find a free alias\n");
+               ret = -EBUSY;
+               goto out_unlock;
        }
 
-       ret = atr->ops->attach_addr(atr, chan->chan_id, addr, alias);
-       if (ret)
-               goto err_del_c2a;
-
        dev_dbg(atr->dev, "chan%u: using alias 0x%02x for addr 0x%02x\n",
-               chan->chan_id, alias, addr);
-
-       goto out_unlock;
+               chan->chan_id, c2a->alias, addr);
 
-err_del_c2a:
-       i2c_atr_destroy_c2a(&c2a);
-err_release_alias:
-       i2c_atr_release_alias(chan->alias_pool, alias);
 out_unlock:
        mutex_unlock(&chan->alias_pairs_lock);
        return ret;