From 4d341d8216336174d35cd2575b6b9e4267a88ac8 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Sun, 16 Nov 2014 14:21:47 -0500 Subject: 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 --- drivers/md/dm.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers/md/dm.c') 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); -- cgit v1.2.3