hw/sd/pxa2xx: Realize sysbus device before accessing it

sysbus_mmio_map() and sysbus_connect_irq() should not be
called on unrealized device.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20231020130331.50048-2-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/sd/pxa2xx_mmci.c

@@ -483,11 +483,11 @@ PXA2xxMMCIState *pxa2xx_mmci_init(MemoryRegion *sysmem,
 
     dev = qdev_new(TYPE_PXA2XX_MMCI);
     sbd = SYS_BUS_DEVICE(dev);
+    sysbus_realize_and_unref(sbd, &error_fatal);
     sysbus_mmio_map(sbd, 0, base);
     sysbus_connect_irq(sbd, 0, irq);
     qdev_connect_gpio_out_named(dev, "rx-dma", 0, rx_dma);
     qdev_connect_gpio_out_named(dev, "tx-dma", 0, tx_dma);
-    sysbus_realize_and_unref(sbd, &error_fatal);
 
     return PXA2XX_MMCI(dev);
 }