spi: spidev: fix speed setting message

The message of max device speed setting is shown when
an error in spi_setup() occurs.
Instead, it should be shown when the setup call succeeds.

Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Link: https://lore.kernel.org/r/20200229161841.89144-3-oleksandr.suvorov@toradex.com
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spidev.c

@@ -454,10 +454,11 @@ spidev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 
 			spi->max_speed_hz = tmp;
 			retval = spi_setup(spi);
-			if (retval >= 0)
+			if (retval == 0) {
 				spidev->speed_hz = tmp;
-			else
-				dev_dbg(&spi->dev, "%d Hz (max)\n", tmp);
+				dev_dbg(&spi->dev, "%d Hz (max)\n",
+					spidev->speed_hz);
+			}
 			spi->max_speed_hz = save;
 		}
 		break;