block: use return status of bdrv_append()

Now bdrv_append returns status and we can drop all the local_err things
around it.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-Id: <20210202124956.63146-3-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/block.c b/block.c
index fdb0261cb3..c682c3e3b9 100644
--- a/block.c
+++ b/block.c
@@ -3118,7 +3118,6 @@ static BlockDriverState *bdrv_append_temp_snapshot(BlockDriverState *bs,
     int64_t total_size;
     QemuOpts *opts = NULL;
     BlockDriverState *bs_snapshot = NULL;
-    Error *local_err = NULL;
     int ret;
 
     /* if snapshot, we create a temporary backing file and open it
@@ -3165,9 +3164,8 @@ static BlockDriverState *bdrv_append_temp_snapshot(BlockDriverState *bs,
      * order to be able to return one, we have to increase
      * bs_snapshot's refcount here */
     bdrv_ref(bs_snapshot);
-    bdrv_append(bs_snapshot, bs, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
+    ret = bdrv_append(bs_snapshot, bs, errp);
+    if (ret < 0) {
         bs_snapshot = NULL;
         goto out;
     }