We need to call stream_complete() in order to do all the necessary clean-ups, even if there's an early failure. At the moment it's only useful to make sure that s->backing_file_str is not leaked, but it will become more important if we introduce support for streaming to any intermediate node.
Signed-off-by: Alberto Garcia <be...@igalia.com> Reviewed-by: Max Reitz <mre...@redhat.com> Reviewed-by: Fam Zheng <f...@redhat.com> Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com> --- block/stream.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/block/stream.c b/block/stream.c index cafaa07..eea3938 100644 --- a/block/stream.c +++ b/block/stream.c @@ -89,21 +89,21 @@ static void coroutine_fn stream_run(void *opaque) StreamCompleteData *data; BlockDriverState *bs = s->common.bs; BlockDriverState *base = s->base; - int64_t sector_num, end; + int64_t sector_num = 0; + int64_t end = -1; int error = 0; int ret = 0; int n = 0; void *buf; if (!bs->backing) { - block_job_completed(&s->common, 0); - return; + goto out; } s->common.len = bdrv_getlength(bs); if (s->common.len < 0) { - block_job_completed(&s->common, s->common.len); - return; + ret = s->common.len; + goto out; } end = s->common.len >> BDRV_SECTOR_BITS; @@ -190,6 +190,7 @@ wait: qemu_vfree(buf); +out: /* Modify backing chain and close BDSes in main loop */ data = g_malloc(sizeof(*data)); data->ret = ret; -- 2.7.0