We can reuse memory_region_init_io in memory_region_init_rom_device.
Also shorten some other function prototypes.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
---
 system/memory.c | 21 +++++++--------------
 1 file changed, 7 insertions(+), 14 deletions(-)

diff --git a/system/memory.c b/system/memory.c
index c3465d7ffe..74179463ea 100644
--- a/system/memory.c
+++ b/system/memory.c
@@ -1568,12 +1568,9 @@ static void memory_region_set_ops(MemoryRegion *mr,
     mr->terminates = true;
 }
 
-void memory_region_init_io(MemoryRegion *mr,
-                           Object *owner,
-                           const MemoryRegionOps *ops,
-                           void *opaque,
-                           const char *name,
-                           uint64_t size)
+void memory_region_init_io(MemoryRegion *mr, Object *owner,
+                           const MemoryRegionOps *ops, void *opaque,
+                           const char *name, uint64_t size)
 {
     memory_region_init(mr, owner, name, size);
     memory_region_set_ops(mr, ops, opaque);
@@ -1684,12 +1681,9 @@ void memory_region_init_ram_device_ptr(MemoryRegion *mr, Object *owner,
     mr->ram_device = true;
 }
 
-void memory_region_init_alias(MemoryRegion *mr,
-                              Object *owner,
-                              const char *name,
-                              MemoryRegion *orig,
-                              hwaddr offset,
-                              uint64_t size)
+void memory_region_init_alias(MemoryRegion *mr, Object *owner,
+                              const char *name, MemoryRegion *orig,
+                              hwaddr offset, uint64_t size)
 {
     memory_region_init(mr, owner, name, size);
     mr->alias = orig;
@@ -3704,8 +3698,7 @@ bool memory_region_init_rom_device(MemoryRegion *mr, Object *owner,
     Error *err = NULL;
 
     assert(ops);
-    memory_region_init(mr, owner, name, size);
-    memory_region_set_ops(mr, ops, opaque);
+    memory_region_init_io(mr, owner, ops, opaque, name, size);
     mr->ram_block = qemu_ram_alloc(size, 0, mr, &err);
     if (!memory_region_do_init_ram(mr, err, errp)) {
         return false;
-- 
2.41.3