leds: aw200xx: Fix error code in probe()

The "ret" variable is zero/success here.  Don't return that, return
-EINVAL instead.

Fixes: 36a87f37 ("leds: Add AW20xx driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/4d791b69-01c7-4532-818c-63712d3f63e1@moroto.mountainSigned-off-by: Lee Jones <lee@kernel.org>

drivers/leds/leds-aw200xx.c

@@ -368,7 +368,7 @@ static int aw200xx_probe_fw(struct device *dev, struct aw200xx *chip)
 
 	if (!chip->display_rows ||
 	    chip->display_rows > chip->cdef->display_size_rows_max) {
-		return dev_err_probe(dev, ret,
+		return dev_err_probe(dev, -EINVAL,
 				     "Invalid leds display size %u\n",
 				     chip->display_rows);
 	}