[PULL 13/18] test-bdrv-drain: Call bdrv_co_unref() in coroutine context

[Kevin Wolf <kwolf@redhat.com>]

bdrv_unref() is a no_coroutine_fn, so calling it from coroutine context
is invalid. Use bdrv_co_unref() instead.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230510203601.418015-7-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 tests/unit/test-bdrv-drain.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/unit/test-bdrv-drain.c b/tests/unit/test-bdrv-drain.c
index ae4299ccfa..08bb0f9984 100644
--- a/tests/unit/test-bdrv-drain.c
+++ b/tests/unit/test-bdrv-drain.c
@@ -1019,7 +1019,7 @@ static void coroutine_fn test_co_delete_by_drain(void *opaque)
     g_assert_cmpint(bs->refcnt, ==, 1);
 
     if (!dbdd->detach_instead_of_delete) {
-        blk_unref(blk);
+        blk_co_unref(blk);
     } else {
         BdrvChild *c, *next_c;
         QLIST_FOREACH_SAFE(c, &bs->children, next, next_c) {
-- 
2.40.1