iio: trigger: sysfs: rename error label in iio_sysfs_trigger_probe()

Rename error label in iio_sysfs_trigger_probe() to make more readable.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221024105250.873394-1-yangyingliang@huawei.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/trigger/iio-trig-sysfs.c

@@ -138,18 +138,18 @@ static int iio_sysfs_trigger_probe(int id)
 		}
 	if (foundit) {
 		ret = -EINVAL;
-		goto out1;
+		goto err_unlock;
 	}
 	t = kmalloc(sizeof(*t), GFP_KERNEL);
 	if (t == NULL) {
 		ret = -ENOMEM;
-		goto out1;
+		goto err_unlock;
 	}
 	t->id = id;
 	t->trig = iio_trigger_alloc(&iio_sysfs_trig_dev, "sysfstrig%d", id);
 	if (!t->trig) {
 		ret = -ENOMEM;
-		goto free_t;
+		goto err_free_sys_trig;
 	}
 
 	t->trig->dev.groups = iio_sysfs_trigger_attr_groups;
@@ -159,17 +159,17 @@ static int iio_sysfs_trigger_probe(int id)
 
 	ret = iio_trigger_register(t->trig);
 	if (ret)
-		goto out2;
+		goto err_free_trig;
 	list_add(&t->l, &iio_sysfs_trig_list);
 	__module_get(THIS_MODULE);
 	mutex_unlock(&iio_sysfs_trig_list_mut);
 	return 0;
 
-out2:
+err_free_trig:
 	iio_trigger_free(t->trig);
-free_t:
+err_free_sys_trig:
 	kfree(t);
-out1:
+err_unlock:
 	mutex_unlock(&iio_sysfs_trig_list_mut);
 	return ret;
 }