Input: zforce_ts - do not ignore errors when acquiring regulator

We should abort probe on any error besides -ENOENT which signifies that
the regulator is not defined in device tree or elsewhere, not only
when we see -EPROBE_DEFER.

Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-12-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/touchscreen/zforce_ts.c

@@ -753,7 +753,7 @@ static int zforce_probe(struct i2c_client *client)
 	ts->reg_vdd = devm_regulator_get_optional(&client->dev, "vdd");
 	if (IS_ERR(ts->reg_vdd)) {
 		ret = PTR_ERR(ts->reg_vdd);
-		if (ret == -EPROBE_DEFER)
+		if (ret != -ENOENT)
 			return ret;
 	} else {
 		ret = regulator_enable(ts->reg_vdd);