hw/sd/pxa2xx_mmci: Trivial simplification

Avoid declaring PXA2xxMMCIState local variable, return it directly.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200705213350.24725-3-f4bug@amsat.org>

hw/sd/pxa2xx_mmci.c

@@ -480,10 +480,8 @@ PXA2xxMMCIState *pxa2xx_mmci_init(MemoryRegion *sysmem,
 {
     DeviceState *dev;
     SysBusDevice *sbd;
-    PXA2xxMMCIState *s;
 
     dev = qdev_new(TYPE_PXA2XX_MMCI);
-    s = PXA2XX_MMCI(dev);
     sbd = SYS_BUS_DEVICE(dev);
     sysbus_mmio_map(sbd, 0, base);
     sysbus_connect_irq(sbd, 0, irq);
@@ -491,7 +489,7 @@ PXA2xxMMCIState *pxa2xx_mmci_init(MemoryRegion *sysmem,
     qdev_connect_gpio_out_named(dev, "tx-dma", 0, tx_dma);
     sysbus_realize_and_unref(sbd, &error_fatal);
 
-    return s;
+    return PXA2XX_MMCI(dev);
 }
 
 static void pxa2xx_mmci_set_inserted(DeviceState *dev, bool inserted)