| commit | d09960b0032174eb493c4c13be5b9c9ef36dc9a7 | [log] [tgz] |
|---|---|---|
| author | Tahsin Erdogan <[email protected]> | Mon Oct 10 05:35:19 2016 -0700 |
| committer | Mike Snitzer <[email protected]> | Tue Oct 18 12:02:08 2016 -0400 |
| tree | 1dfe65031f7b8b7316806e9abc4eb69f3244295a | |
| parent | b052b07c39d593c9954a84d5bbe1563999483f38 [diff] |
dm: free io_barrier after blk_cleanup_queue call dm_old_request_fn() has paths that access md->io_barrier. The party destroying io_barrier should ensure that no future execution of dm_old_request_fn() is possible. Move io_barrier destruction to below blk_cleanup_queue() to ensure this and avoid a NULL pointer crash during request-based DM device shutdown. Cc: [email protected] # 4.3+ Signed-off-by: Tahsin Erdogan <[email protected]> Signed-off-by: Mike Snitzer <[email protected]>