hw/i386/pc: Merge two if statements into one

By being the only entity assigning a non-NULL value to "rtc_irq", the first if
statement determines whether the second if statement is executed. So merge the
two statements into one.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20231007123843.127151-2-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

hw/i386/pc.c

@@ -1199,7 +1199,6 @@ void pc_basic_device_init(struct PCMachineState *pcms,
     DeviceState *hpet = NULL;
     int pit_isa_irq = 0;
     qemu_irq pit_alt_irq = NULL;
-    qemu_irq rtc_irq = NULL;
     ISADevice *pit = NULL;
     MemoryRegion *ioport80_io = g_new(MemoryRegion, 1);
     MemoryRegion *ioportF0_io = g_new(MemoryRegion, 1);
@@ -1219,6 +1218,8 @@ void pc_basic_device_init(struct PCMachineState *pcms,
      */
     if (pcms->hpet_enabled && (!kvm_irqchip_in_kernel() ||
                                kvm_has_pit_state2())) {
+        qemu_irq rtc_irq;
+
         hpet = qdev_try_new(TYPE_HPET);
         if (!hpet) {
             error_report("couldn't create HPET device");
@@ -1243,16 +1244,14 @@ void pc_basic_device_init(struct PCMachineState *pcms,
         pit_isa_irq = -1;
         pit_alt_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT);
         rtc_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT);
-    }
-
-    if (rtc_irq) {
         qdev_connect_gpio_out(DEVICE(rtc_state), 0, rtc_irq);
     } else {
         uint32_t irq = object_property_get_uint(OBJECT(rtc_state),
                                                 "irq",
                                                 &error_fatal);
         isa_connect_gpio_out(rtc_state, 0, irq);
     }
+
     object_property_add_alias(OBJECT(pcms), "rtc-time", OBJECT(rtc_state),
                               "date");