dm clone: call kmem_cache_destroy() in dm_clone_init() error path

stable inclusion
from stable-v5.10.180
commit 717ceb487bc30bc32ccb99fa5966a4f5f4e84686
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8FC2O

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=717ceb487bc30bc32ccb99fa5966a4f5f4e84686



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commit 6827af4a upstream.

Otherwise the _hydration_cache will leak if dm_register_target() fails.

Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>