IIO: GYRO: ADXRS450: Don't exit probe, in case the power on default is not met.

If the part get's probed twice without hard reset in between, the power on default
register read-back can't be met. This shouldn't cause the second probe to fail.
So warn but don't exit.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/iio/gyro/adxrs450_core.c

@@ -278,11 +278,9 @@ static int adxrs450_initial_setup(struct adxrs450_state *st)
 	ret = adxrs450_spi_initial(st, &t, 1);
 	if (ret)
 		return ret;
-	if (t != 0x01) {
-		dev_err(&st->us->dev, "The initial response is not correct!\n");
-		return -ENODEV;
-
-	}
+	if (t != 0x01)
+		dev_warn(&st->us->dev, "The initial power on response "
+			 "is not correct! Restart without reset?\n");
 
 	msleep(ADXRS450_STARTUP_DELAY);
 	ret = adxrs450_spi_initial(st, &t, 0);