[Qemu-block] [PULL 09/10] blockjob: assert(cb) when create job

[Jeff Cody]

From: Changlong Xie <xiecl.f...@cn.fujitsu.com>

Callback for block job should always exist

Suggested-by: Paolo Bonzini <pbonz...@redhat.com>
Suggested-by: Kevin Wolf <kw...@redhat.com>
Signed-off-by: Changlong Xie <xiecl.f...@cn.fujitsu.com>
Reviewed-by: Fam Zheng <f...@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com>
Reviewed-by: Jeff Cody <jc...@redhat.com>
Message-id: 1466672241-22485-2-git-send-email-xiecl.f...@cn.fujitsu.com
Signed-off-by: Jeff Cody <jc...@redhat.com>
---
 block/backup.c | 1 -
 blockjob.c     | 1 +
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/backup.c b/block/backup.c
index 581269b..f87f8d5 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -489,7 +489,6 @@ void backup_start(BlockDriverState *bs, BlockDriverState 
*target,
 
     assert(bs);
     assert(target);
-    assert(cb);
 
     if (bs == target) {
         error_setg(errp, "Source and target cannot be the same");
diff --git a/blockjob.c b/blockjob.c
index 90c4e26..205da9d 100644
--- a/blockjob.c
+++ b/blockjob.c
@@ -110,6 +110,7 @@ void *block_job_create(const BlockJobDriver *driver, 
BlockDriverState *bs,
     BlockBackend *blk;
     BlockJob *job;
 
+    assert(cb);
     if (bs->job) {
         error_setg(errp, QERR_DEVICE_IN_USE, bdrv_get_device_name(bs));
         return NULL;
-- 
1.9.3