[Qemu-devel] [PATCH 11/26] pflash_cfi02: use realize for pflash_cfi02

[Hu Tao]

Cc: Kevin Wolf <kw...@redhat.com>
Cc: Stefan Hajnoczi <stefa...@redhat.com>
Signed-off-by: Hu Tao <hu...@cn.fujitsu.com>
---
 hw/block/pflash_cfi02.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/hw/block/pflash_cfi02.c b/hw/block/pflash_cfi02.c
index 5f25246..45db415 100644
--- a/hw/block/pflash_cfi02.c
+++ b/hw/block/pflash_cfi02.c
@@ -586,9 +586,9 @@ static const MemoryRegionOps pflash_cfi02_ops_le = {
     .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
-static int pflash_cfi02_init(SysBusDevice *dev)
+static void pflash_cfi02_realize(DeviceState *dev, Error **errp)
 {
-    pflash_t *pfl = FROM_SYSBUS(typeof(*pfl), dev);
+    pflash_t *pfl = DO_UPCAST(typeof(*pfl), busdev.qdev, dev);
     uint32_t chip_len;
     int ret;
 
@@ -610,14 +610,16 @@ static int pflash_cfi02_init(SysBusDevice *dev)
         /* read the initial flash content */
         ret = bdrv_read(pfl->bs, 0, pfl->storage, chip_len >> 9);
         if (ret < 0) {
-            g_free(pfl);
-            return 1;
+            vmstate_unregister_ram(&pfl->orig_mem, DEVICE(pfl));
+            memory_region_destroy(&pfl->orig_mem);
+            error_setg (errp, "failed to read the initial flash content");
+            return;
         }
     }
 
     pflash_setup_mappings(pfl);
     pfl->rom_mode = 1;
-    sysbus_init_mmio(dev, &pfl->mem);
+    sysbus_init_mmio(SYS_BUS_DEVICE(dev), &pfl->mem);
 
     if (pfl->bs) {
         pfl->ro = bdrv_is_read_only(pfl->bs);
@@ -706,8 +708,6 @@ static int pflash_cfi02_init(SysBusDevice *dev)
 
     pfl->cfi_table[0x3b] = 0x00;
     pfl->cfi_table[0x3c] = 0x00;
-
-    return 0;
 }
 
 static Property pflash_cfi02_properties[] = {
@@ -730,9 +730,8 @@ static Property pflash_cfi02_properties[] = {
 static void pflash_cfi02_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = pflash_cfi02_init;
+    dc->realize = pflash_cfi02_realize;
     dc->props = pflash_cfi02_properties;
 }
 
-- 
1.8.3.1