[PATCH 1/8] block-backend: blk_root(): drop const specifier on return type

[Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>]

We'll need get non-const child pointer for graph modifications in
further commits.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
 include/sysemu/block-backend.h | 2 +-
 block/block-backend.c          | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h
index 9ac5f7bbd3..be03301123 100644
--- a/include/sysemu/block-backend.h
+++ b/include/sysemu/block-backend.h
@@ -270,7 +270,7 @@ int coroutine_fn blk_co_copy_range(BlockBackend *blk_in, int64_t off_in,
                                    int bytes, BdrvRequestFlags read_flags,
                                    BdrvRequestFlags write_flags);
 
-const BdrvChild *blk_root(BlockBackend *blk);
+BdrvChild *blk_root(BlockBackend *blk);
 
 int blk_make_empty(BlockBackend *blk, Error **errp);
 
diff --git a/block/block-backend.c b/block/block-backend.c
index deb55c272e..7a0a1e1ae2 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -2455,7 +2455,7 @@ int coroutine_fn blk_co_copy_range(BlockBackend *blk_in, int64_t off_in,
                               bytes, read_flags, write_flags);
 }
 
-const BdrvChild *blk_root(BlockBackend *blk)
+BdrvChild *blk_root(BlockBackend *blk)
 {
     return blk->root;
 }
-- 
2.29.2