diff --git a/drivers/staging/iio/frequency/ad9832.c b/drivers/staging/iio/frequency/ad9832.c
index b7c8351ce2ffc1ba4948d29c6c911b8468a1b51e..cf68159a584815aef3afdb73d24a7680ff3f8935 100644
--- a/drivers/staging/iio/frequency/ad9832.c
+++ b/drivers/staging/iio/frequency/ad9832.c
@@ -120,7 +120,7 @@ static ssize_t ad9832_write(struct device *dev, struct device_attribute *attr,
 		ret = spi_sync(st->spi, &st->msg);
 		break;
 	case AD9832_PHASE_SYM:
-		if (val < 0 || val > 3) {
+		if (val > 3) {
 			ret = -EINVAL;
 			break;
 		}