Commit 4d341d82 authored by Mike Snitzer's avatar Mike Snitzer

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: default avatarMike Snitzer <snitzer@redhat.com>
parent 5ec02084
...@@ -525,13 +525,14 @@ static int dm_blk_ioctl(struct block_device *bdev, fmode_t mode, ...@@ -525,13 +525,14 @@ static int dm_blk_ioctl(struct block_device *bdev, fmode_t mode,
goto out; goto out;
tgt = dm_table_get_target(map, 0); tgt = dm_table_get_target(map, 0);
if (!tgt->type->ioctl)
goto out;
if (dm_suspended_md(md)) { if (dm_suspended_md(md)) {
r = -EAGAIN; r = -EAGAIN;
goto out; goto out;
} }
if (tgt->type->ioctl)
r = tgt->type->ioctl(tgt, cmd, arg); r = tgt->type->ioctl(tgt, cmd, arg);
out: out:
......
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