From: Dong Xu Wang <wdon...@linux.vnet.ibm.com> If qcow2_cache_flush failed, s->lock will not be unlock.
Signed-off-by: Dong Xu Wang <wdon...@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kw...@redhat.com> --- block/qcow2.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/block/qcow2.c b/block/qcow2.c index a181932..ef057d3 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -1113,11 +1113,13 @@ static int qcow2_co_flush(BlockDriverState *bs) qemu_co_mutex_lock(&s->lock); ret = qcow2_cache_flush(bs, s->l2_table_cache); if (ret < 0) { + qemu_co_mutex_unlock(&s->lock); return ret; } ret = qcow2_cache_flush(bs, s->refcount_block_cache); if (ret < 0) { + qemu_co_mutex_unlock(&s->lock); return ret; } qemu_co_mutex_unlock(&s->lock); -- 1.7.6.4