[LU-6523] Unchecked usage of potential ERR_PTR result in lmv_hsm_req_count and lmv_hsm_req_build

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.9.0
• Labels: patch
• Severity: 3
• Assignee: Dmitry Eremin (Inactive)
• Reporter: Oleg Drokin

Description

smatch highlighted that lmv_hsm_req_count and lmv_hsm_req_build have this sort of code:

        for (i = 0; i < hur->hur_request.hr_itemcount; i++) {
                curr_tgt = lmv_find_target(lmv, &hur->hur_user_item[i].hui_fid);
                if (obd_uuid_equals(&curr_tgt->ltd_uuid, &tgt_mds->ltd_uuid))
                        nr++;
        }

lmv_find_target can return an error that we definitely need to check for there.