nvmet-passthru: propagate status from id override functions

The id override functions return a status which is not propagated to the
caller.

Fixes: c1fef73 ("nvmet: add passthru code to process commands")
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>

Author: dwsuse

drivers/nvme/target/passthru.c

@@ -226,13 +226,13 @@ static void nvmet_passthru_execute_cmd_work(struct work_struct *w)
 	    req->cmd->common.opcode == nvme_admin_identify) {
 		switch (req->cmd->identify.cns) {
 		case NVME_ID_CNS_CTRL:
-			nvmet_passthru_override_id_ctrl(req);
+			status = nvmet_passthru_override_id_ctrl(req);
 			break;
 		case NVME_ID_CNS_NS:
-			nvmet_passthru_override_id_ns(req);
+			status = nvmet_passthru_override_id_ns(req);
 			break;
 		case NVME_ID_CNS_NS_DESC_LIST:
-			nvmet_passthru_override_id_descs(req);
+			status = nvmet_passthru_override_id_descs(req);
 			break;
 		}
 	} else if (status < 0)