Input: zforce_ts - handle errors from input_mt_init_sots()

input_mt_init_slots() can potentially return error which needs to be
handled.

Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-6-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Author: dtor

drivers/input/touchscreen/zforce_ts.c

@@ -826,7 +826,11 @@ static int zforce_probe(struct i2c_client *client)
 	input_set_abs_params(input_dev, ABS_MT_TOUCH_MINOR, 0,
 			     ZFORCE_MAX_AREA, 0, 0);
 	input_set_abs_params(input_dev, ABS_MT_ORIENTATION, 0, 1, 0, 0);
-	input_mt_init_slots(input_dev, ZFORCE_REPORT_POINTS, INPUT_MT_DIRECT);
+
+	ret = input_mt_init_slots(input_dev, ZFORCE_REPORT_POINTS,
+				  INPUT_MT_DIRECT);
+	if (ret)
+		return ret;
 
 	input_set_drvdata(ts->input, ts);