i2c: atr: find_mapping() -> get_mapping()

A find operation implies that a null result is not an error.

Use get naming to clarify things and to prepare for splitting up the
logic inside this function.

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

Author: Demon000

drivers/i2c/i2c-atr.c

@@ -241,7 +241,7 @@ static void i2c_atr_release_alias(struct i2c_atr_alias_pool *alias_pool, u16 ali
 
 /* Must be called with alias_pairs_lock held */
 static struct i2c_atr_alias_pair *
-i2c_atr_find_mapping_by_addr(struct i2c_atr_chan *chan, u16 addr)
+i2c_atr_get_mapping_by_addr(struct i2c_atr_chan *chan, u16 addr)
 {
 	struct i2c_atr *atr = chan->atr;
 	struct i2c_atr_alias_pair *c2a;
@@ -339,7 +339,7 @@ static int i2c_atr_map_msgs(struct i2c_atr_chan *chan, struct i2c_msg *msgs,
 	for (i = 0; i < num; i++) {
 		chan->orig_addrs[i] = msgs[i].addr;
 
-		c2a = i2c_atr_find_mapping_by_addr(chan, msgs[i].addr);
+		c2a = i2c_atr_get_mapping_by_addr(chan, msgs[i].addr);
 
 		if (!c2a) {
 			dev_err(atr->dev, "client 0x%02x not mapped!\n",
@@ -432,7 +432,7 @@ static int i2c_atr_smbus_xfer(struct i2c_adapter *adap, u16 addr,
 
 	mutex_lock(&chan->alias_pairs_lock);
 
-	c2a = i2c_atr_find_mapping_by_addr(chan, addr);
+	c2a = i2c_atr_get_mapping_by_addr(chan, addr);
 
 	if (!c2a) {
 		dev_err(atr->dev, "client 0x%02x not mapped!\n", addr);
@@ -540,7 +540,7 @@ static void i2c_atr_detach_addr(struct i2c_adapter *adapter,
 
 	mutex_lock(&chan->alias_pairs_lock);
 
-	c2a = i2c_atr_find_mapping_by_addr(chan, addr);
+	c2a = i2c_atr_get_mapping_by_addr(chan, addr);
 	if (!c2a) {
 		 /* This should never happen */
 		dev_warn(atr->dev, "Unable to find address mapping\n");