ceph: Clean up if error occurred in finish_read()
ceph: Clean up if error occurred in finish_read()

Clean up if error occurred rather than going through normal process

Signed-off-by: Li Wang <65b3ccf850ea721688fb240d52a95019d85394b7@ubuntukylin.com>
Signed-off-by: Yunchuan Wen <f4a0ac8941360fe4a11abcab952b2597f3ba9b8c@ubuntukylin.com>
Signed-off-by: Sage Weil <6dd34506bbd5e58221bbb3e4732d97c91f02277b@inktank.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs