diff options
Diffstat (limited to 'migration/block.c')
| -rw-r--r-- | migration/block.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/migration/block.c b/migration/block.c index b9580a6c7e..86c2256a2b 100644 --- a/migration/block.c +++ b/migration/block.c @@ -368,7 +368,9 @@ static void unset_dirty_tracking(void) BlkMigDevState *bmds; QSIMPLEQ_FOREACH(bmds, &block_mig_state.bmds_list, entry) { - bdrv_release_dirty_bitmap(bmds->dirty_bitmap); + if (bmds->dirty_bitmap) { + bdrv_release_dirty_bitmap(bmds->dirty_bitmap); + } } } @@ -676,13 +678,18 @@ static int64_t get_remaining_dirty(void) static void block_migration_cleanup_bmds(void) { BlkMigDevState *bmds; + BlockDriverState *bs; AioContext *ctx; unset_dirty_tracking(); while ((bmds = QSIMPLEQ_FIRST(&block_mig_state.bmds_list)) != NULL) { QSIMPLEQ_REMOVE_HEAD(&block_mig_state.bmds_list, entry); - bdrv_op_unblock_all(blk_bs(bmds->blk), bmds->blocker); + + bs = blk_bs(bmds->blk); + if (bs) { + bdrv_op_unblock_all(bs, bmds->blocker); + } error_free(bmds->blocker); /* Save ctx, because bmds->blk can disappear during blk_unref. */ |