diff options
| author | Mike Snitzer <snitzer@redhat.com> | 2014-11-16 14:21:47 -0500 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2014-11-19 11:24:56 -0500 |
| commit | 4d341d8216336174d35cd2575b6b9e4267a88ac8 (patch) | |
| tree | 0792adf981d87cd1443e62b3aadeb99bd8b5feca /drivers/md/dm.c | |
| parent | 5ec02084f60f1537df850817fb91a16072cba4e7 (diff) | |
dm: return earlier from dm_blk_ioctl if target doesn't implement .ioctl
No point checking if the device is suspended if the current target
doesn't even implement .ioctl
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm.c')
| -rw-r--r-- | drivers/md/dm.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 866ff19aa438..f8cdd97c28a7 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -525,14 +525,15 @@ retry: goto out; tgt = dm_table_get_target(map, 0); + if (!tgt->type->ioctl) + goto out; if (dm_suspended_md(md)) { r = -EAGAIN; goto out; } - if (tgt->type->ioctl) - r = tgt->type->ioctl(tgt, cmd, arg); + r = tgt->type->ioctl(tgt, cmd, arg); out: dm_put_live_table(md, srcu_idx); |