hw/arm/fsl-imx*: Don't create "null" chardevs for serial devices

Following commit 12051d82f004024, UART devices should handle
being passed a NULL pointer chardev, so we don't need to
create "null" backends in board code. Remove the code that
does this and updates serial_hds[].

(fsl-imx7.c was already written this way.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20180420145249.32435-3-peter.maydell@linaro.org

1 files changed, 1 insertions, 12 deletions

diff --git a/hw/arm/fsl-imx6.c b/hw/arm/fsl-imx6.c
index 9dfbc9a8c4..ea14de33c6 100644
--- a/hw/arm/fsl-imx6.c
+++ b/hw/arm/fsl-imx6.c
@@ -189,18 +189,7 @@ static void fsl_imx6_realize(DeviceState *dev, Error **errp)
         };
 
         if (i < MAX_SERIAL_PORTS) {
-            Chardev *chr;
-
-            chr = serial_hds[i];
-
-            if (!chr) {
-                char *label = g_strdup_printf("imx6.uart%d", i + 1);
-                chr = qemu_chr_new(label, "null");
-                g_free(label);
-                serial_hds[i] = chr;
-            }
-
-            qdev_prop_set_chr(DEVICE(&s->uart[i]), "chardev", chr);
+            qdev_prop_set_chr(DEVICE(&s->uart[i]), "chardev", serial_hds[i]);
         }
 
         object_property_set_bool(OBJECT(&s->uart[i]), true, "realized", &err);