[PATCH v2] hw/intc: Handle the error of IOAPICCommonClass.realize()

[Zhao Liu <zhao1.liu@linux.intel.com>]

From: Zhao Liu <zhao1.liu@intel.com>

IOAPICCommonClass implements its own private realize(), and this private
realize() allows error.

Therefore, return directly if IOAPICCommonClass.realize() meets error.

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
---
v2: Add the missing ERRP_GUARD(). (Markus)
---
 hw/intc/ioapic_common.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/hw/intc/ioapic_common.c b/hw/intc/ioapic_common.c
index cb9bf6214608..efbe6958c8d7 100644
--- a/hw/intc/ioapic_common.c
+++ b/hw/intc/ioapic_common.c
@@ -152,6 +152,7 @@ static int ioapic_dispatch_post_load(void *opaque, int version_id)
 
 static void ioapic_common_realize(DeviceState *dev, Error **errp)
 {
+    ERRP_GUARD();
     IOAPICCommonState *s = IOAPIC_COMMON(dev);
     IOAPICCommonClass *info;
 
@@ -162,6 +163,9 @@ static void ioapic_common_realize(DeviceState *dev, Error **errp)
 
     info = IOAPIC_COMMON_GET_CLASS(s);
     info->realize(dev, errp);
+    if (*errp) {
+        return;
+    }
 
     sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->io_memory);
     ioapic_no++;
-- 
2.34.1