media: dvb-frontends: m88ds3103: Fix a memory leak in an error handling path of m88ds3103_probe()

If an error occurs after a successful i2c_mux_add_adapter(), then
i2c_mux_del_adapters() should be called to free some resources, as
already done in the remove function.

Fixes: e6089fec ("media: m88ds3103: Add support for ds3103b demod")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/dvb-frontends/m88ds3103.c

@@ -1894,7 +1894,7 @@ static int m88ds3103_probe(struct i2c_client *client)
 		/* get frontend address */
 		ret = regmap_read(dev->regmap, 0x29, &utmp);
 		if (ret)
-			goto err_kfree;
+			goto err_del_adapters;
 		dev->dt_addr = ((utmp & 0x80) == 0) ? 0x42 >> 1 : 0x40 >> 1;
 		dev_dbg(&client->dev, "dt addr is 0x%02x\n", dev->dt_addr);
 
@@ -1902,11 +1902,14 @@ static int m88ds3103_probe(struct i2c_client *client)
 						      dev->dt_addr);
 		if (IS_ERR(dev->dt_client)) {
 			ret = PTR_ERR(dev->dt_client);
-			goto err_kfree;
+			goto err_del_adapters;
 		}
 	}
 
 	return 0;
+
+err_del_adapters:
+	i2c_mux_del_adapters(dev->muxc);
 err_kfree:
 	kfree(dev);
 err: