scsi: qla2xxx: Reuse existing error handling path

There is no need to duplicate code, use the existing error handling path to
free resources. This is more future-proof.

Link: https://lore.kernel.org/r/6973844a1532ec2dc8e86f3533362e79d78ed774.1618132821.git.christophe.jaillet@wanadoo.frReviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla2xxx/qla_bsg.c

@@ -2585,8 +2585,8 @@ qla2x00_get_host_stats(struct bsg_job *bsg_job)
 
 	data = kzalloc(response_len, GFP_KERNEL);
 	if (!data) {
-		kfree(req_data);
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto host_stat_out;
 	}
 
 	ret = qla2xxx_get_ini_stats(fc_bsg_to_shost(bsg_job), req_data->stat_type,