From: Yin Congmin <congmin.yin@intel.com>
Date: Mon, 5 Jul 2021 07:43:56 +0000 (+0800)
Subject: librbd/cache/pwl: supplement error handle
X-Git-Tag: v16.2.7~50^2~30
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=c20f61dbd1efa94bdcc7916c85793a9452361c75;p=ceph.git

librbd/cache/pwl: supplement error handle

add return after error handling and clean bdev before return

Signed-off-by: Yin Congmin <congmin.yin@intel.com>
(cherry picked from commit 2cd9881116a47794051615fcf0a95a5e879ae7e6)
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